Home / 15,082.38-20,807.97-11,112.96

Finding the Fourth Proportional to 15,082.38, 20,807.97 and 11,112.96

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Solution

The fourth proportional to 15,082.38, 20,807.97 and 11,112.96 is: 15,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,082.38 : 20,807.97 = 11,112.96 : x
  2. Step 2: Convert to fraction form
    15,082.38/20,807.97 = 11,112.96/x
  3. Step 3: Cross multiply
    15,082.38x = 20,807.97 × 11,112.96
  4. Step 4: Simplify right side
    15,082.38x = 231,238,138.29
  5. Step 5: Solve for x
    x = 231,238,138.29/15,082.38
  6. Step 6: Final answer
    x = 15,331.67

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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.