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Finding the Fourth Proportional to 6,654.65, 9,155.11 and 6,470.12

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Solution

The fourth proportional to 6,654.65, 9,155.11 and 6,470.12 is: 8,901.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,654.65 : 9,155.11 = 6,470.12 : x
  2. Step 2: Convert to fraction form
    6,654.65/9,155.11 = 6,470.12/x
  3. Step 3: Cross multiply
    6,654.65x = 9,155.11 × 6,470.12
  4. Step 4: Simplify right side
    6,654.65x = 59,234,614.54
  5. Step 5: Solve for x
    x = 59,234,614.54/6,654.65
  6. Step 6: Final answer
    x = 8,901.24

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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.