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Finding the Fourth Proportional to 8,106.99, 11,187.50 and 4,570.21

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Solution

The fourth proportional to 8,106.99, 11,187.50 and 4,570.21 is: 6,306.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.99 : 11,187.50 = 4,570.21 : x
  2. Step 2: Convert to fraction form
    8,106.99/11,187.50 = 4,570.21/x
  3. Step 3: Cross multiply
    8,106.99x = 11,187.50 × 4,570.21
  4. Step 4: Simplify right side
    8,106.99x = 51,129,157.01
  5. Step 5: Solve for x
    x = 51,129,157.01/8,106.99
  6. Step 6: Final answer
    x = 6,306.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.