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Finding the Fourth Proportional to 9,335.47, 12,878.73 and 6,147.92

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Solution

The fourth proportional to 9,335.47, 12,878.73 and 6,147.92 is: 8,481.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,335.47 : 12,878.73 = 6,147.92 : x
  2. Step 2: Convert to fraction form
    9,335.47/12,878.73 = 6,147.92/x
  3. Step 3: Cross multiply
    9,335.47x = 12,878.73 × 6,147.92
  4. Step 4: Simplify right side
    9,335.47x = 79,177,337.35
  5. Step 5: Solve for x
    x = 79,177,337.35/9,335.47
  6. Step 6: Final answer
    x = 8,481.35

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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.