Home / 10,438.70-15,659.67-3,512.66

Finding the Fourth Proportional to 10,438.70, 15,659.67 and 3,512.66

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Solution

The fourth proportional to 10,438.70, 15,659.67 and 3,512.66 is: 5,269.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.70 : 15,659.67 = 3,512.66 : x
  2. Step 2: Convert to fraction form
    10,438.70/15,659.67 = 3,512.66/x
  3. Step 3: Cross multiply
    10,438.70x = 15,659.67 × 3,512.66
  4. Step 4: Simplify right side
    10,438.70x = 55,007,096.42
  5. Step 5: Solve for x
    x = 55,007,096.42/10,438.70
  6. Step 6: Final answer
    x = 5,269.54

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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.