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Finding the Fourth Proportional to 8,803.35, 13,130.84 and 8,190.99

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Solution

The fourth proportional to 8,803.35, 13,130.84 and 8,190.99 is: 12,217.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.35 : 13,130.84 = 8,190.99 : x
  2. Step 2: Convert to fraction form
    8,803.35/13,130.84 = 8,190.99/x
  3. Step 3: Cross multiply
    8,803.35x = 13,130.84 × 8,190.99
  4. Step 4: Simplify right side
    8,803.35x = 107,554,599.61
  5. Step 5: Solve for x
    x = 107,554,599.61/8,803.35
  6. Step 6: Final answer
    x = 12,217.46

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Half scale
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Double scale
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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.