Home / 15,910.22-21,956.06-8,836.70

Finding the Fourth Proportional to 15,910.22, 21,956.06 and 8,836.70

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Solution

The fourth proportional to 15,910.22, 21,956.06 and 8,836.70 is: 12,194.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.22 : 21,956.06 = 8,836.70 : x
  2. Step 2: Convert to fraction form
    15,910.22/21,956.06 = 8,836.70/x
  3. Step 3: Cross multiply
    15,910.22x = 21,956.06 × 8,836.70
  4. Step 4: Simplify right side
    15,910.22x = 194,019,027.71
  5. Step 5: Solve for x
    x = 194,019,027.71/15,910.22
  6. Step 6: Final answer
    x = 12,194.61

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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.