Home / 12,481.47-18,708.89-6,229.17

Finding the Fourth Proportional to 12,481.47, 18,708.89 and 6,229.17

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Solution

The fourth proportional to 12,481.47, 18,708.89 and 6,229.17 is: 9,337.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.47 : 18,708.89 = 6,229.17 : x
  2. Step 2: Convert to fraction form
    12,481.47/18,708.89 = 6,229.17/x
  3. Step 3: Cross multiply
    12,481.47x = 18,708.89 × 6,229.17
  4. Step 4: Simplify right side
    12,481.47x = 116,540,825.18
  5. Step 5: Solve for x
    x = 116,540,825.18/12,481.47
  6. Step 6: Final answer
    x = 9,337.11

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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.