Home / 18,839.52-25,999.56-10,456.20

Finding the Fourth Proportional to 18,839.52, 25,999.56 and 10,456.20

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Solution

The fourth proportional to 18,839.52, 25,999.56 and 10,456.20 is: 14,430.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.52 : 25,999.56 = 10,456.20 : x
  2. Step 2: Convert to fraction form
    18,839.52/25,999.56 = 10,456.20/x
  3. Step 3: Cross multiply
    18,839.52x = 25,999.56 × 10,456.20
  4. Step 4: Simplify right side
    18,839.52x = 271,856,599.27
  5. Step 5: Solve for x
    x = 271,856,599.27/18,839.52
  6. Step 6: Final answer
    x = 14,430.12

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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.