Home / 11,527.60-15,908.84-8,689.96

Finding the Fourth Proportional to 11,527.60, 15,908.84 and 8,689.96

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Solution

The fourth proportional to 11,527.60, 15,908.84 and 8,689.96 is: 11,992.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,527.60 : 15,908.84 = 8,689.96 : x
  2. Step 2: Convert to fraction form
    11,527.60/15,908.84 = 8,689.96/x
  3. Step 3: Cross multiply
    11,527.60x = 15,908.84 × 8,689.96
  4. Step 4: Simplify right side
    11,527.60x = 138,247,183.25
  5. Step 5: Solve for x
    x = 138,247,183.25/11,527.60
  6. Step 6: Final answer
    x = 11,992.71

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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.