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Finding the Fourth Proportional to 6,642.26, 9,966.77 and 5,092.19

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Solution

The fourth proportional to 6,642.26, 9,966.77 and 5,092.19 is: 7,640.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.26 : 9,966.77 = 5,092.19 : x
  2. Step 2: Convert to fraction form
    6,642.26/9,966.77 = 5,092.19/x
  3. Step 3: Cross multiply
    6,642.26x = 9,966.77 × 5,092.19
  4. Step 4: Simplify right side
    6,642.26x = 50,752,686.53
  5. Step 5: Solve for x
    x = 50,752,686.53/6,642.26
  6. Step 6: Final answer
    x = 7,640.88

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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.