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Finding the Fourth Proportional to 11,374.40, 15,694.79 and 6,337.47

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Solution

The fourth proportional to 11,374.40, 15,694.79 and 6,337.47 is: 8,744.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,374.40 : 15,694.79 = 6,337.47 : x
  2. Step 2: Convert to fraction form
    11,374.40/15,694.79 = 6,337.47/x
  3. Step 3: Cross multiply
    11,374.40x = 15,694.79 × 6,337.47
  4. Step 4: Simplify right side
    11,374.40x = 99,465,229.09
  5. Step 5: Solve for x
    x = 99,465,229.09/11,374.40
  6. Step 6: Final answer
    x = 8,744.66

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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.