Home / 13,449.26-18,560.42-7,399.76

Finding the Fourth Proportional to 13,449.26, 18,560.42 and 7,399.76

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Solution

The fourth proportional to 13,449.26, 18,560.42 and 7,399.76 is: 10,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.26 : 18,560.42 = 7,399.76 : x
  2. Step 2: Convert to fraction form
    13,449.26/18,560.42 = 7,399.76/x
  3. Step 3: Cross multiply
    13,449.26x = 18,560.42 × 7,399.76
  4. Step 4: Simplify right side
    13,449.26x = 137,342,523.70
  5. Step 5: Solve for x
    x = 137,342,523.70/13,449.26
  6. Step 6: Final answer
    x = 10,211.91

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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.