Home / 11,189.60-15,439.92-6,474.32

Finding the Fourth Proportional to 11,189.60, 15,439.92 and 6,474.32

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Solution

The fourth proportional to 11,189.60, 15,439.92 and 6,474.32 is: 8,933.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.60 : 15,439.92 = 6,474.32 : x
  2. Step 2: Convert to fraction form
    11,189.60/15,439.92 = 6,474.32/x
  3. Step 3: Cross multiply
    11,189.60x = 15,439.92 × 6,474.32
  4. Step 4: Simplify right side
    11,189.60x = 99,962,982.85
  5. Step 5: Solve for x
    x = 99,962,982.85/11,189.60
  6. Step 6: Final answer
    x = 8,933.56

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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.