Home / 13,423.11-20,135.67-3,562.17

Finding the Fourth Proportional to 13,423.11, 20,135.67 and 3,562.17

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Solution

The fourth proportional to 13,423.11, 20,135.67 and 3,562.17 is: 5,343.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.11 : 20,135.67 = 3,562.17 : x
  2. Step 2: Convert to fraction form
    13,423.11/20,135.67 = 3,562.17/x
  3. Step 3: Cross multiply
    13,423.11x = 20,135.67 × 3,562.17
  4. Step 4: Simplify right side
    13,423.11x = 71,726,679.60
  5. Step 5: Solve for x
    x = 71,726,679.60/13,423.11
  6. Step 6: Final answer
    x = 5,343.52

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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.