Home / 10,008.68-15,022.20-5,081.85

Finding the Fourth Proportional to 10,008.68, 15,022.20 and 5,081.85

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Solution

The fourth proportional to 10,008.68, 15,022.20 and 5,081.85 is: 7,627.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.68 : 15,022.20 = 5,081.85 : x
  2. Step 2: Convert to fraction form
    10,008.68/15,022.20 = 5,081.85/x
  3. Step 3: Cross multiply
    10,008.68x = 15,022.20 × 5,081.85
  4. Step 4: Simplify right side
    10,008.68x = 76,340,567.07
  5. Step 5: Solve for x
    x = 76,340,567.07/10,008.68
  6. Step 6: Final answer
    x = 7,627.44

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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.