Home / 13,882.16-20,823.28-3,493.92

Finding the Fourth Proportional to 13,882.16, 20,823.28 and 3,493.92

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Solution

The fourth proportional to 13,882.16, 20,823.28 and 3,493.92 is: 5,240.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,882.16 : 20,823.28 = 3,493.92 : x
  2. Step 2: Convert to fraction form
    13,882.16/20,823.28 = 3,493.92/x
  3. Step 3: Cross multiply
    13,882.16x = 20,823.28 × 3,493.92
  4. Step 4: Simplify right side
    13,882.16x = 72,754,874.46
  5. Step 5: Solve for x
    x = 72,754,874.46/13,882.16
  6. Step 6: Final answer
    x = 5,240.89

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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.