Home / 15,910.16-21,956.70-8,836.58

Finding the Fourth Proportional to 15,910.16, 21,956.70 and 8,836.58

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Solution

The fourth proportional to 15,910.16, 21,956.70 and 8,836.58 is: 12,194.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.16 : 21,956.70 = 8,836.58 : x
  2. Step 2: Convert to fraction form
    15,910.16/21,956.70 = 8,836.58/x
  3. Step 3: Cross multiply
    15,910.16x = 21,956.70 × 8,836.58
  4. Step 4: Simplify right side
    15,910.16x = 194,022,136.09
  5. Step 5: Solve for x
    x = 194,022,136.09/15,910.16
  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.