Home / 11,409.20-15,744.30-6,373.38

Finding the Fourth Proportional to 11,409.20, 15,744.30 and 6,373.38

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Solution

The fourth proportional to 11,409.20, 15,744.30 and 6,373.38 is: 8,795.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.20 : 15,744.30 = 6,373.38 : x
  2. Step 2: Convert to fraction form
    11,409.20/15,744.30 = 6,373.38/x
  3. Step 3: Cross multiply
    11,409.20x = 15,744.30 × 6,373.38
  4. Step 4: Simplify right side
    11,409.20x = 100,344,406.73
  5. Step 5: Solve for x
    x = 100,344,406.73/11,409.20
  6. Step 6: Final answer
    x = 8,795.04

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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.