Home / 15,741.52-21,705.30-11,755.92

Finding the Fourth Proportional to 15,741.52, 21,705.30 and 11,755.92

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Solution

The fourth proportional to 15,741.52, 21,705.30 and 11,755.92 is: 16,209.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.52 : 21,705.30 = 11,755.92 : x
  2. Step 2: Convert to fraction form
    15,741.52/21,705.30 = 11,755.92/x
  3. Step 3: Cross multiply
    15,741.52x = 21,705.30 × 11,755.92
  4. Step 4: Simplify right side
    15,741.52x = 255,165,770.38
  5. Step 5: Solve for x
    x = 255,165,770.38/15,741.52
  6. Step 6: Final answer
    x = 16,209.73

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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.