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Finding the Fourth Proportional to 12,469.52, 18,701.12 and 3,702.40

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Solution

The fourth proportional to 12,469.52, 18,701.12 and 3,702.40 is: 5,552.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469.52 : 18,701.12 = 3,702.40 : x
  2. Step 2: Convert to fraction form
    12,469.52/18,701.12 = 3,702.40/x
  3. Step 3: Cross multiply
    12,469.52x = 18,701.12 × 3,702.40
  4. Step 4: Simplify right side
    12,469.52x = 69,239,026.69
  5. Step 5: Solve for x
    x = 69,239,026.69/12,469.52
  6. Step 6: Final answer
    x = 5,552.66

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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.