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Finding the Fourth Proportional to 8,927.10, 13,390.65 and 7,695.90

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Solution

The fourth proportional to 8,927.10, 13,390.65 and 7,695.90 is: 11,543.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,927.10 : 13,390.65 = 7,695.90 : x
  2. Step 2: Convert to fraction form
    8,927.10/13,390.65 = 7,695.90/x
  3. Step 3: Cross multiply
    8,927.10x = 13,390.65 × 7,695.90
  4. Step 4: Simplify right side
    8,927.10x = 103,053,103.34
  5. Step 5: Solve for x
    x = 103,053,103.34/8,927.10
  6. Step 6: Final answer
    x = 11,543.85

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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.