Home / 10,998.24-15,177.96-7,861.92

Finding the Fourth Proportional to 10,998.24, 15,177.96 and 7,861.92

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Solution

The fourth proportional to 10,998.24, 15,177.96 and 7,861.92 is: 10,849.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.24 : 15,177.96 = 7,861.92 : x
  2. Step 2: Convert to fraction form
    10,998.24/15,177.96 = 7,861.92/x
  3. Step 3: Cross multiply
    10,998.24x = 15,177.96 × 7,861.92
  4. Step 4: Simplify right side
    10,998.24x = 119,327,907.28
  5. Step 5: Solve for x
    x = 119,327,907.28/10,998.24
  6. Step 6: Final answer
    x = 10,849.73

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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.