Home / 18,531.40-25,546.98-11,453.80

Finding the Fourth Proportional to 18,531.40, 25,546.98 and 11,453.80

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Solution

The fourth proportional to 18,531.40, 25,546.98 and 11,453.80 is: 15,789.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531.40 : 25,546.98 = 11,453.80 : x
  2. Step 2: Convert to fraction form
    18,531.40/25,546.98 = 11,453.80/x
  3. Step 3: Cross multiply
    18,531.40x = 25,546.98 × 11,453.80
  4. Step 4: Simplify right side
    18,531.40x = 292,609,999.52
  5. Step 5: Solve for x
    x = 292,609,999.52/18,531.40
  6. Step 6: Final answer
    x = 15,789.96

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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.