Home / 12,512.43-18,773.88-5,488.82

Finding the Fourth Proportional to 12,512.43, 18,773.88 and 5,488.82

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Solution

The fourth proportional to 12,512.43, 18,773.88 and 5,488.82 is: 8,235.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.43 : 18,773.88 = 5,488.82 : x
  2. Step 2: Convert to fraction form
    12,512.43/18,773.88 = 5,488.82/x
  3. Step 3: Cross multiply
    12,512.43x = 18,773.88 × 5,488.82
  4. Step 4: Simplify right side
    12,512.43x = 103,046,403.97
  5. Step 5: Solve for x
    x = 103,046,403.97/12,512.43
  6. Step 6: Final answer
    x = 8,235.52

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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.