Home / 8,639.73-12,959.86-3,374.52

Finding the Fourth Proportional to 8,639.73, 12,959.86 and 3,374.52

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Solution

The fourth proportional to 8,639.73, 12,959.86 and 3,374.52 is: 5,061.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.73 : 12,959.86 = 3,374.52 : x
  2. Step 2: Convert to fraction form
    8,639.73/12,959.86 = 3,374.52/x
  3. Step 3: Cross multiply
    8,639.73x = 12,959.86 × 3,374.52
  4. Step 4: Simplify right side
    8,639.73x = 43,733,306.77
  5. Step 5: Solve for x
    x = 43,733,306.77/8,639.73
  6. Step 6: Final answer
    x = 5,061.88

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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.