Home / 11,549.28-15,939.46-6,513.78

Finding the Fourth Proportional to 11,549.28, 15,939.46 and 6,513.78

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Solution

The fourth proportional to 11,549.28, 15,939.46 and 6,513.78 is: 8,989.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,549.28 : 15,939.46 = 6,513.78 : x
  2. Step 2: Convert to fraction form
    11,549.28/15,939.46 = 6,513.78/x
  3. Step 3: Cross multiply
    11,549.28x = 15,939.46 × 6,513.78
  4. Step 4: Simplify right side
    11,549.28x = 103,826,039.78
  5. Step 5: Solve for x
    x = 103,826,039.78/11,549.28
  6. Step 6: Final answer
    x = 8,989.83

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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.