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Finding the Fourth Proportional to 9,011.52, 13,444.92 and 8,078.40

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Solution

The fourth proportional to 9,011.52, 13,444.92 and 8,078.40 is: 12,052.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,011.52 : 13,444.92 = 8,078.40 : x
  2. Step 2: Convert to fraction form
    9,011.52/13,444.92 = 8,078.40/x
  3. Step 3: Cross multiply
    9,011.52x = 13,444.92 × 8,078.40
  4. Step 4: Simplify right side
    9,011.52x = 108,613,441.73
  5. Step 5: Solve for x
    x = 108,613,441.73/9,011.52
  6. Step 6: Final answer
    x = 12,052.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.