Home / 8,116.76-12,178.10-3,437.96

Finding the Fourth Proportional to 8,116.76, 12,178.10 and 3,437.96

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Solution

The fourth proportional to 8,116.76, 12,178.10 and 3,437.96 is: 5,158.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.76 : 12,178.10 = 3,437.96 : x
  2. Step 2: Convert to fraction form
    8,116.76/12,178.10 = 3,437.96/x
  3. Step 3: Cross multiply
    8,116.76x = 12,178.10 × 3,437.96
  4. Step 4: Simplify right side
    8,116.76x = 41,867,820.68
  5. Step 5: Solve for x
    x = 41,867,820.68/8,116.76
  6. Step 6: Final answer
    x = 5,158.19

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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.