Home / 13,487.11-20,230.85-5,167.55

Finding the Fourth Proportional to 13,487.11, 20,230.85 and 5,167.55

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Solution

The fourth proportional to 13,487.11, 20,230.85 and 5,167.55 is: 7,751.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487.11 : 20,230.85 = 5,167.55 : x
  2. Step 2: Convert to fraction form
    13,487.11/20,230.85 = 5,167.55/x
  3. Step 3: Cross multiply
    13,487.11x = 20,230.85 × 5,167.55
  4. Step 4: Simplify right side
    13,487.11x = 104,543,821.30
  5. Step 5: Solve for x
    x = 104,543,821.30/13,487.11
  6. Step 6: Final answer
    x = 7,751.39

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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.