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Finding the Fourth Proportional to 8,657.71, 12,998.57 and 4,443.95

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Solution

The fourth proportional to 8,657.71, 12,998.57 and 4,443.95 is: 6,672.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,657.71 : 12,998.57 = 4,443.95 : x
  2. Step 2: Convert to fraction form
    8,657.71/12,998.57 = 4,443.95/x
  3. Step 3: Cross multiply
    8,657.71x = 12,998.57 × 4,443.95
  4. Step 4: Simplify right side
    8,657.71x = 57,764,995.15
  5. Step 5: Solve for x
    x = 57,764,995.15/8,657.71
  6. Step 6: Final answer
    x = 6,672.09

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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.