Home / 13,487.56-20,230.60-4,127.57

Finding the Fourth Proportional to 13,487.56, 20,230.60 and 4,127.57

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Solution

The fourth proportional to 13,487.56, 20,230.60 and 4,127.57 is: 6,191.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487.56 : 20,230.60 = 4,127.57 : x
  2. Step 2: Convert to fraction form
    13,487.56/20,230.60 = 4,127.57/x
  3. Step 3: Cross multiply
    13,487.56x = 20,230.60 × 4,127.57
  4. Step 4: Simplify right side
    13,487.56x = 83,503,182.03
  5. Step 5: Solve for x
    x = 83,503,182.03/13,487.56
  6. Step 6: Final answer
    x = 6,191.13

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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.