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Finding the Fourth Proportional to 8,645.42, 12,951.09 and 4,488.14

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Solution

The fourth proportional to 8,645.42, 12,951.09 and 4,488.14 is: 6,723.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.42 : 12,951.09 = 4,488.14 : x
  2. Step 2: Convert to fraction form
    8,645.42/12,951.09 = 4,488.14/x
  3. Step 3: Cross multiply
    8,645.42x = 12,951.09 × 4,488.14
  4. Step 4: Simplify right side
    8,645.42x = 58,126,305.07
  5. Step 5: Solve for x
    x = 58,126,305.07/8,645.42
  6. Step 6: Final answer
    x = 6,723.36

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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.