Home / 8,314.66-12,468.34-3,116.90

Finding the Fourth Proportional to 8,314.66, 12,468.34 and 3,116.90

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Solution

The fourth proportional to 8,314.66, 12,468.34 and 3,116.90 is: 4,673.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,314.66 : 12,468.34 = 3,116.90 : x
  2. Step 2: Convert to fraction form
    8,314.66/12,468.34 = 3,116.90/x
  3. Step 3: Cross multiply
    8,314.66x = 12,468.34 × 3,116.90
  4. Step 4: Simplify right side
    8,314.66x = 38,862,568.95
  5. Step 5: Solve for x
    x = 38,862,568.95/8,314.66
  6. Step 6: Final answer
    x = 4,673.98

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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.