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Finding the Fourth Proportional to 7,313.73, 10,086.17 and 5,489.43

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Solution

The fourth proportional to 7,313.73, 10,086.17 and 5,489.43 is: 7,570.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,313.73 : 10,086.17 = 5,489.43 : x
  2. Step 2: Convert to fraction form
    7,313.73/10,086.17 = 5,489.43/x
  3. Step 3: Cross multiply
    7,313.73x = 10,086.17 × 5,489.43
  4. Step 4: Simplify right side
    7,313.73x = 55,367,296.74
  5. Step 5: Solve for x
    x = 55,367,296.74/7,313.73
  6. Step 6: Final answer
    x = 7,570.32

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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.