Home / 13,344.31-18,416.10-7,375.85

Finding the Fourth Proportional to 13,344.31, 18,416.10 and 7,375.85

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Solution

The fourth proportional to 13,344.31, 18,416.10 and 7,375.85 is: 10,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.31 : 18,416.10 = 7,375.85 : x
  2. Step 2: Convert to fraction form
    13,344.31/18,416.10 = 7,375.85/x
  3. Step 3: Cross multiply
    13,344.31x = 18,416.10 × 7,375.85
  4. Step 4: Simplify right side
    13,344.31x = 135,834,391.19
  5. Step 5: Solve for x
    x = 135,834,391.19/13,344.31
  6. Step 6: Final answer
    x = 10,179.20

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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.