Home / 10,638.92-15,957.68-3,974.12

Finding the Fourth Proportional to 10,638.92, 15,957.68 and 3,974.12

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Solution

The fourth proportional to 10,638.92, 15,957.68 and 3,974.12 is: 5,960.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.92 : 15,957.68 = 3,974.12 : x
  2. Step 2: Convert to fraction form
    10,638.92/15,957.68 = 3,974.12/x
  3. Step 3: Cross multiply
    10,638.92x = 15,957.68 × 3,974.12
  4. Step 4: Simplify right side
    10,638.92x = 63,417,735.24
  5. Step 5: Solve for x
    x = 63,417,735.24/10,638.92
  6. Step 6: Final answer
    x = 5,960.92

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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.