Home / 15,726.38-21,705.50-9,016.52

Finding the Fourth Proportional to 15,726.38, 21,705.50 and 9,016.52

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Solution

The fourth proportional to 15,726.38, 21,705.50 and 9,016.52 is: 12,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,726.38 : 21,705.50 = 9,016.52 : x
  2. Step 2: Convert to fraction form
    15,726.38/21,705.50 = 9,016.52/x
  3. Step 3: Cross multiply
    15,726.38x = 21,705.50 × 9,016.52
  4. Step 4: Simplify right side
    15,726.38x = 195,708,074.86
  5. Step 5: Solve for x
    x = 195,708,074.86/15,726.38
  6. Step 6: Final answer
    x = 12,444.57

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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.