Home / 10,512.39-15,747.45-5,231.46

Finding the Fourth Proportional to 10,512.39, 15,747.45 and 5,231.46

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Solution

The fourth proportional to 10,512.39, 15,747.45 and 5,231.46 is: 7,836.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.39 : 15,747.45 = 5,231.46 : x
  2. Step 2: Convert to fraction form
    10,512.39/15,747.45 = 5,231.46/x
  3. Step 3: Cross multiply
    10,512.39x = 15,747.45 × 5,231.46
  4. Step 4: Simplify right side
    10,512.39x = 82,382,154.78
  5. Step 5: Solve for x
    x = 82,382,154.78/10,512.39
  6. Step 6: Final answer
    x = 7,836.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.