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Finding the Fourth Proportional to 9,376.71, 12,934.13 and 6,393.93

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Solution

The fourth proportional to 9,376.71, 12,934.13 and 6,393.93 is: 8,819.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,376.71 : 12,934.13 = 6,393.93 : x
  2. Step 2: Convert to fraction form
    9,376.71/12,934.13 = 6,393.93/x
  3. Step 3: Cross multiply
    9,376.71x = 12,934.13 × 6,393.93
  4. Step 4: Simplify right side
    9,376.71x = 82,699,889.86
  5. Step 5: Solve for x
    x = 82,699,889.86/9,376.71
  6. Step 6: Final answer
    x = 8,819.71

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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.