Home / 18,243.41-25,159.11-11,517.35

Finding the Fourth Proportional to 18,243.41, 25,159.11 and 11,517.35

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Solution

The fourth proportional to 18,243.41, 25,159.11 and 11,517.35 is: 15,883.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.41 : 25,159.11 = 11,517.35 : x
  2. Step 2: Convert to fraction form
    18,243.41/25,159.11 = 11,517.35/x
  3. Step 3: Cross multiply
    18,243.41x = 25,159.11 × 11,517.35
  4. Step 4: Simplify right side
    18,243.41x = 289,766,275.56
  5. Step 5: Solve for x
    x = 289,766,275.56/18,243.41
  6. Step 6: Final answer
    x = 15,883.34

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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.