Home / 10,972.10-16,458.15-9,003.80

Finding the Fourth Proportional to 10,972.10, 16,458.15 and 9,003.80

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Solution

The fourth proportional to 10,972.10, 16,458.15 and 9,003.80 is: 13,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.10 : 16,458.15 = 9,003.80 : x
  2. Step 2: Convert to fraction form
    10,972.10/16,458.15 = 9,003.80/x
  3. Step 3: Cross multiply
    10,972.10x = 16,458.15 × 9,003.80
  4. Step 4: Simplify right side
    10,972.10x = 148,185,890.97
  5. Step 5: Solve for x
    x = 148,185,890.97/10,972.10
  6. Step 6: Final answer
    x = 13,505.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.