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Finding the Fourth Proportional to 12,344.76, 18,500.58 and 7,959.96

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Solution

The fourth proportional to 12,344.76, 18,500.58 and 7,959.96 is: 11,929.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,344.76 : 18,500.58 = 7,959.96 : x
  2. Step 2: Convert to fraction form
    12,344.76/18,500.58 = 7,959.96/x
  3. Step 3: Cross multiply
    12,344.76x = 18,500.58 × 7,959.96
  4. Step 4: Simplify right side
    12,344.76x = 147,263,876.78
  5. Step 5: Solve for x
    x = 147,263,876.78/12,344.76
  6. Step 6: Final answer
    x = 11,929.26

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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.