Home / 13,372.46-18,449.20-8,065.34

Finding the Fourth Proportional to 13,372.46, 18,449.20 and 8,065.34

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Solution

The fourth proportional to 13,372.46, 18,449.20 and 8,065.34 is: 11,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.46 : 18,449.20 = 8,065.34 : x
  2. Step 2: Convert to fraction form
    13,372.46/18,449.20 = 8,065.34/x
  3. Step 3: Cross multiply
    13,372.46x = 18,449.20 × 8,065.34
  4. Step 4: Simplify right side
    13,372.46x = 148,799,070.73
  5. Step 5: Solve for x
    x = 148,799,070.73/13,372.46
  6. Step 6: Final answer
    x = 11,127.28

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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.