Home / 15,910.80-21,956.30-8,837.68

Finding the Fourth Proportional to 15,910.80, 21,956.30 and 8,837.68

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Solution

The fourth proportional to 15,910.80, 21,956.30 and 8,837.68 is: 12,195.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.80 : 21,956.30 = 8,837.68 : x
  2. Step 2: Convert to fraction form
    15,910.80/21,956.30 = 8,837.68/x
  3. Step 3: Cross multiply
    15,910.80x = 21,956.30 × 8,837.68
  4. Step 4: Simplify right side
    15,910.80x = 194,042,753.38
  5. Step 5: Solve for x
    x = 194,042,753.38/15,910.80
  6. Step 6: Final answer
    x = 12,195.66

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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.