Home / 14,138.28-21,211.66-8,522.04

Finding the Fourth Proportional to 14,138.28, 21,211.66 and 8,522.04

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Solution

The fourth proportional to 14,138.28, 21,211.66 and 8,522.04 is: 12,785.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.28 : 21,211.66 = 8,522.04 : x
  2. Step 2: Convert to fraction form
    14,138.28/21,211.66 = 8,522.04/x
  3. Step 3: Cross multiply
    14,138.28x = 21,211.66 × 8,522.04
  4. Step 4: Simplify right side
    14,138.28x = 180,766,614.99
  5. Step 5: Solve for x
    x = 180,766,614.99/14,138.28
  6. Step 6: Final answer
    x = 12,785.62

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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.