Home / 15,227.97-21,027.51-12,723.45

Finding the Fourth Proportional to 15,227.97, 21,027.51 and 12,723.45

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Solution

The fourth proportional to 15,227.97, 21,027.51 and 12,723.45 is: 17,569.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,227.97 : 21,027.51 = 12,723.45 : x
  2. Step 2: Convert to fraction form
    15,227.97/21,027.51 = 12,723.45/x
  3. Step 3: Cross multiply
    15,227.97x = 21,027.51 × 12,723.45
  4. Step 4: Simplify right side
    15,227.97x = 267,542,472.11
  5. Step 5: Solve for x
    x = 267,542,472.11/15,227.97
  6. Step 6: Final answer
    x = 17,569.15

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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.