Home / 14,797.20-20,420.24-8,082.70

Finding the Fourth Proportional to 14,797.20, 20,420.24 and 8,082.70

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Solution

The fourth proportional to 14,797.20, 20,420.24 and 8,082.70 is: 11,154.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,797.20 : 20,420.24 = 8,082.70 : x
  2. Step 2: Convert to fraction form
    14,797.20/20,420.24 = 8,082.70/x
  3. Step 3: Cross multiply
    14,797.20x = 20,420.24 × 8,082.70
  4. Step 4: Simplify right side
    14,797.20x = 165,050,673.85
  5. Step 5: Solve for x
    x = 165,050,673.85/14,797.20
  6. Step 6: Final answer
    x = 11,154.18

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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.