Home / 10,203.10-15,301.60-3,627.78

Finding the Fourth Proportional to 10,203.10, 15,301.60 and 3,627.78

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Solution

The fourth proportional to 10,203.10, 15,301.60 and 3,627.78 is: 5,440.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,203.10 : 15,301.60 = 3,627.78 : x
  2. Step 2: Convert to fraction form
    10,203.10/15,301.60 = 3,627.78/x
  3. Step 3: Cross multiply
    10,203.10x = 15,301.60 × 3,627.78
  4. Step 4: Simplify right side
    10,203.10x = 55,510,838.45
  5. Step 5: Solve for x
    x = 55,510,838.45/10,203.10
  6. Step 6: Final answer
    x = 5,440.59

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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.