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Finding the Fourth Proportional to 9,937.86, 14,934.48 and 9,279.71

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Solution

The fourth proportional to 9,937.86, 14,934.48 and 9,279.71 is: 13,945.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,937.86 : 14,934.48 = 9,279.71 : x
  2. Step 2: Convert to fraction form
    9,937.86/14,934.48 = 9,279.71/x
  3. Step 3: Cross multiply
    9,937.86x = 14,934.48 × 9,279.71
  4. Step 4: Simplify right side
    9,937.86x = 138,587,673.94
  5. Step 5: Solve for x
    x = 138,587,673.94/9,937.86
  6. Step 6: Final answer
    x = 13,945.42

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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.