Home / 10,202.80-15,300.60-3,629.20

Finding the Fourth Proportional to 10,202.80, 15,300.60 and 3,629.20

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Solution

The fourth proportional to 10,202.80, 15,300.60 and 3,629.20 is: 5,442.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,202.80 : 15,300.60 = 3,629.20 : x
  2. Step 2: Convert to fraction form
    10,202.80/15,300.60 = 3,629.20/x
  3. Step 3: Cross multiply
    10,202.80x = 15,300.60 × 3,629.20
  4. Step 4: Simplify right side
    10,202.80x = 55,528,937.52
  5. Step 5: Solve for x
    x = 55,528,937.52/10,202.80
  6. Step 6: Final answer
    x = 5,442.52

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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.