Home / 8,314.56-12,471.49-3,870.70

Finding the Fourth Proportional to 8,314.56, 12,471.49 and 3,870.70

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Solution

The fourth proportional to 8,314.56, 12,471.49 and 3,870.70 is: 5,805.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,314.56 : 12,471.49 = 3,870.70 : x
  2. Step 2: Convert to fraction form
    8,314.56/12,471.49 = 3,870.70/x
  3. Step 3: Cross multiply
    8,314.56x = 12,471.49 × 3,870.70
  4. Step 4: Simplify right side
    8,314.56x = 48,273,333.99
  5. Step 5: Solve for x
    x = 48,273,333.99/8,314.56
  6. Step 6: Final answer
    x = 5,805.88

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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.