Home / 13,654.76-18,839.40-8,343.92

Finding the Fourth Proportional to 13,654.76, 18,839.40 and 8,343.92

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Solution

The fourth proportional to 13,654.76, 18,839.40 and 8,343.92 is: 11,512.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,654.76 : 18,839.40 = 8,343.92 : x
  2. Step 2: Convert to fraction form
    13,654.76/18,839.40 = 8,343.92/x
  3. Step 3: Cross multiply
    13,654.76x = 18,839.40 × 8,343.92
  4. Step 4: Simplify right side
    13,654.76x = 157,194,446.45
  5. Step 5: Solve for x
    x = 157,194,446.45/13,654.76
  6. Step 6: Final answer
    x = 11,512.06

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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.