Home / 15,910.38-21,956.33-8,836.86

Finding the Fourth Proportional to 15,910.38, 21,956.33 and 8,836.86

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Solution

The fourth proportional to 15,910.38, 21,956.33 and 8,836.86 is: 12,194.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.38 : 21,956.33 = 8,836.86 : x
  2. Step 2: Convert to fraction form
    15,910.38/21,956.33 = 8,836.86/x
  3. Step 3: Cross multiply
    15,910.38x = 21,956.33 × 8,836.86
  4. Step 4: Simplify right side
    15,910.38x = 194,024,860.36
  5. Step 5: Solve for x
    x = 194,024,860.36/15,910.38
  6. Step 6: Final answer
    x = 12,194.86

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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.