Home / 14,722-20,316.62-8,007.78

Finding the Fourth Proportional to 14,722, 20,316.62 and 8,007.78

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Solution

The fourth proportional to 14,722, 20,316.62 and 8,007.78 is: 11,050.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,722 : 20,316.62 = 8,007.78 : x
  2. Step 2: Convert to fraction form
    14,722/20,316.62 = 8,007.78/x
  3. Step 3: Cross multiply
    14,722x = 20,316.62 × 8,007.78
  4. Step 4: Simplify right side
    14,722x = 162,691,023.30
  5. Step 5: Solve for x
    x = 162,691,023.30/14,722
  6. Step 6: Final answer
    x = 11,050.88

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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.