Home / 18,726.15-25,838.28-11,922.90

Finding the Fourth Proportional to 18,726.15, 25,838.28 and 11,922.90

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Solution

The fourth proportional to 18,726.15, 25,838.28 and 11,922.90 is: 16,451.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726.15 : 25,838.28 = 11,922.90 : x
  2. Step 2: Convert to fraction form
    18,726.15/25,838.28 = 11,922.90/x
  3. Step 3: Cross multiply
    18,726.15x = 25,838.28 × 11,922.90
  4. Step 4: Simplify right side
    18,726.15x = 308,067,228.61
  5. Step 5: Solve for x
    x = 308,067,228.61/18,726.15
  6. Step 6: Final answer
    x = 16,451.18

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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.