Home / 8,342.64-12,515.94-3,957.84

Finding the Fourth Proportional to 8,342.64, 12,515.94 and 3,957.84

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Solution

The fourth proportional to 8,342.64, 12,515.94 and 3,957.84 is: 5,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.64 : 12,515.94 = 3,957.84 : x
  2. Step 2: Convert to fraction form
    8,342.64/12,515.94 = 3,957.84/x
  3. Step 3: Cross multiply
    8,342.64x = 12,515.94 × 3,957.84
  4. Step 4: Simplify right side
    8,342.64x = 49,536,087.97
  5. Step 5: Solve for x
    x = 49,536,087.97/8,342.64
  6. Step 6: Final answer
    x = 5,937.70

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1.5x scale

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.