Home / 15,422.51-21,283.11-8,348.92

Finding the Fourth Proportional to 15,422.51, 21,283.11 and 8,348.92

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Solution

The fourth proportional to 15,422.51, 21,283.11 and 8,348.92 is: 11,521.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.51 : 21,283.11 = 8,348.92 : x
  2. Step 2: Convert to fraction form
    15,422.51/21,283.11 = 8,348.92/x
  3. Step 3: Cross multiply
    15,422.51x = 21,283.11 × 8,348.92
  4. Step 4: Simplify right side
    15,422.51x = 177,690,876.33
  5. Step 5: Solve for x
    x = 177,690,876.33/15,422.51
  6. Step 6: Final answer
    x = 11,521.53

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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.