Home / 13,575.97-18,726.55-8,976.75

Finding the Fourth Proportional to 13,575.97, 18,726.55 and 8,976.75

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Solution

The fourth proportional to 13,575.97, 18,726.55 and 8,976.75 is: 12,382.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.97 : 18,726.55 = 8,976.75 : x
  2. Step 2: Convert to fraction form
    13,575.97/18,726.55 = 8,976.75/x
  3. Step 3: Cross multiply
    13,575.97x = 18,726.55 × 8,976.75
  4. Step 4: Simplify right side
    13,575.97x = 168,103,557.71
  5. Step 5: Solve for x
    x = 168,103,557.71/13,575.97
  6. Step 6: Final answer
    x = 12,382.43

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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.