Home / 11,115.38-15,275.07-10,601.42

Finding the Fourth Proportional to 11,115.38, 15,275.07 and 10,601.42

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Solution

The fourth proportional to 11,115.38, 15,275.07 and 10,601.42 is: 14,568.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.38 : 15,275.07 = 10,601.42 : x
  2. Step 2: Convert to fraction form
    11,115.38/15,275.07 = 10,601.42/x
  3. Step 3: Cross multiply
    11,115.38x = 15,275.07 × 10,601.42
  4. Step 4: Simplify right side
    11,115.38x = 161,937,432.60
  5. Step 5: Solve for x
    x = 161,937,432.60/11,115.38
  6. Step 6: Final answer
    x = 14,568.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.