Home / 15,422.55-21,283.10-8,348.97

Finding the Fourth Proportional to 15,422.55, 21,283.10 and 8,348.97

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Solution

The fourth proportional to 15,422.55, 21,283.10 and 8,348.97 is: 11,521.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.55 : 21,283.10 = 8,348.97 : x
  2. Step 2: Convert to fraction form
    15,422.55/21,283.10 = 8,348.97/x
  3. Step 3: Cross multiply
    15,422.55x = 21,283.10 × 8,348.97
  4. Step 4: Simplify right side
    15,422.55x = 177,691,921.66
  5. Step 5: Solve for x
    x = 177,691,921.66/15,422.55
  6. Step 6: Final answer
    x = 11,521.57

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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.