Home / 10,147.14-15,221.32-5,756.13

Finding the Fourth Proportional to 10,147.14, 15,221.32 and 5,756.13

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Solution

The fourth proportional to 10,147.14, 15,221.32 and 5,756.13 is: 8,634.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.14 : 15,221.32 = 5,756.13 : x
  2. Step 2: Convert to fraction form
    10,147.14/15,221.32 = 5,756.13/x
  3. Step 3: Cross multiply
    10,147.14x = 15,221.32 × 5,756.13
  4. Step 4: Simplify right side
    10,147.14x = 87,615,882.30
  5. Step 5: Solve for x
    x = 87,615,882.30/10,147.14
  6. Step 6: Final answer
    x = 8,634.54

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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.