Home / 10,440.20-15,649.67-5,167.31

Finding the Fourth Proportional to 10,440.20, 15,649.67 and 5,167.31

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Solution

The fourth proportional to 10,440.20, 15,649.67 and 5,167.31 is: 7,745.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.20 : 15,649.67 = 5,167.31 : x
  2. Step 2: Convert to fraction form
    10,440.20/15,649.67 = 5,167.31/x
  3. Step 3: Cross multiply
    10,440.20x = 15,649.67 × 5,167.31
  4. Step 4: Simplify right side
    10,440.20x = 80,866,592.20
  5. Step 5: Solve for x
    x = 80,866,592.20/10,440.20
  6. Step 6: Final answer
    x = 7,745.69

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1.5x scale

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.