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Finding the Fourth Proportional to 6,666.59, 9,200.85 and 5,545.65

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Solution

The fourth proportional to 6,666.59, 9,200.85 and 5,545.65 is: 7,653.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.59 : 9,200.85 = 5,545.65 : x
  2. Step 2: Convert to fraction form
    6,666.59/9,200.85 = 5,545.65/x
  3. Step 3: Cross multiply
    6,666.59x = 9,200.85 × 5,545.65
  4. Step 4: Simplify right side
    6,666.59x = 51,024,693.80
  5. Step 5: Solve for x
    x = 51,024,693.80/6,666.59
  6. Step 6: Final answer
    x = 7,653.79

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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.