Home / 8,942.40-12,337.92-5,585.76

Finding the Fourth Proportional to 8,942.40, 12,337.92 and 5,585.76

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Solution

The fourth proportional to 8,942.40, 12,337.92 and 5,585.76 is: 7,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,942.40 : 12,337.92 = 5,585.76 : x
  2. Step 2: Convert to fraction form
    8,942.40/12,337.92 = 5,585.76/x
  3. Step 3: Cross multiply
    8,942.40x = 12,337.92 × 5,585.76
  4. Step 4: Simplify right side
    8,942.40x = 68,916,660.02
  5. Step 5: Solve for x
    x = 68,916,660.02/8,942.40
  6. Step 6: Final answer
    x = 7,706.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.