Home / 10,899.04-15,049.12-8,377.16

Finding the Fourth Proportional to 10,899.04, 15,049.12 and 8,377.16

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Solution

The fourth proportional to 10,899.04, 15,049.12 and 8,377.16 is: 11,566.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,899.04 : 15,049.12 = 8,377.16 : x
  2. Step 2: Convert to fraction form
    10,899.04/15,049.12 = 8,377.16/x
  3. Step 3: Cross multiply
    10,899.04x = 15,049.12 × 8,377.16
  4. Step 4: Simplify right side
    10,899.04x = 126,068,886.10
  5. Step 5: Solve for x
    x = 126,068,886.10/10,899.04
  6. Step 6: Final answer
    x = 11,566.97

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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.