Home / 15,999.62-22,079.31-8,829.59

Finding the Fourth Proportional to 15,999.62, 22,079.31 and 8,829.59

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Solution

The fourth proportional to 15,999.62, 22,079.31 and 8,829.59 is: 12,184.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.62 : 22,079.31 = 8,829.59 : x
  2. Step 2: Convert to fraction form
    15,999.62/22,079.31 = 8,829.59/x
  3. Step 3: Cross multiply
    15,999.62x = 22,079.31 × 8,829.59
  4. Step 4: Simplify right side
    15,999.62x = 194,951,144.39
  5. Step 5: Solve for x
    x = 194,951,144.39/15,999.62
  6. Step 6: Final answer
    x = 12,184.74

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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.