Home / 10,145.26-15,211.68-3,572.20

Finding the Fourth Proportional to 10,145.26, 15,211.68 and 3,572.20

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Solution

The fourth proportional to 10,145.26, 15,211.68 and 3,572.20 is: 5,356.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.26 : 15,211.68 = 3,572.20 : x
  2. Step 2: Convert to fraction form
    10,145.26/15,211.68 = 3,572.20/x
  3. Step 3: Cross multiply
    10,145.26x = 15,211.68 × 3,572.20
  4. Step 4: Simplify right side
    10,145.26x = 54,339,163.30
  5. Step 5: Solve for x
    x = 54,339,163.30/10,145.26
  6. Step 6: Final answer
    x = 5,356.11

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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.