Home / 10,211.11-15,321.02-5,769.38

Finding the Fourth Proportional to 10,211.11, 15,321.02 and 5,769.38

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Solution

The fourth proportional to 10,211.11, 15,321.02 and 5,769.38 is: 8,656.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.11 : 15,321.02 = 5,769.38 : x
  2. Step 2: Convert to fraction form
    10,211.11/15,321.02 = 5,769.38/x
  3. Step 3: Cross multiply
    10,211.11x = 15,321.02 × 5,769.38
  4. Step 4: Simplify right side
    10,211.11x = 88,392,795.82
  5. Step 5: Solve for x
    x = 88,392,795.82/10,211.11
  6. Step 6: Final answer
    x = 8,656.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.