Home / 13,446.28-20,170.22-4,086.62

Finding the Fourth Proportional to 13,446.28, 20,170.22 and 4,086.62

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Solution

The fourth proportional to 13,446.28, 20,170.22 and 4,086.62 is: 6,130.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.28 : 20,170.22 = 4,086.62 : x
  2. Step 2: Convert to fraction form
    13,446.28/20,170.22 = 4,086.62/x
  3. Step 3: Cross multiply
    13,446.28x = 20,170.22 × 4,086.62
  4. Step 4: Simplify right side
    13,446.28x = 82,428,024.46
  5. Step 5: Solve for x
    x = 82,428,024.46/13,446.28
  6. Step 6: Final answer
    x = 6,130.17

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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.