Home / 10,421.92-15,627.21-3,757.51

Finding the Fourth Proportional to 10,421.92, 15,627.21 and 3,757.51

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Solution

The fourth proportional to 10,421.92, 15,627.21 and 3,757.51 is: 5,634.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.92 : 15,627.21 = 3,757.51 : x
  2. Step 2: Convert to fraction form
    10,421.92/15,627.21 = 3,757.51/x
  3. Step 3: Cross multiply
    10,421.92x = 15,627.21 × 3,757.51
  4. Step 4: Simplify right side
    10,421.92x = 58,719,397.85
  5. Step 5: Solve for x
    x = 58,719,397.85/10,421.92
  6. Step 6: Final answer
    x = 5,634.22

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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.