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Finding the Fourth Proportional to 9,572.99, 14,290.83 and 8,327.21

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Solution

The fourth proportional to 9,572.99, 14,290.83 and 8,327.21 is: 12,431.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,572.99 : 14,290.83 = 8,327.21 : x
  2. Step 2: Convert to fraction form
    9,572.99/14,290.83 = 8,327.21/x
  3. Step 3: Cross multiply
    9,572.99x = 14,290.83 × 8,327.21
  4. Step 4: Simplify right side
    9,572.99x = 119,002,671.03
  5. Step 5: Solve for x
    x = 119,002,671.03/9,572.99
  6. Step 6: Final answer
    x = 12,431.09

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Find fourth proportional to 4,786.49, 7,145.42 and 4,163.60
Half scale
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Double scale
Find fourth proportional to 9,573.99, 14,292.32 and 8,328.21
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.