Home / 13,435.02-20,149.92-3,948.48

Finding the Fourth Proportional to 13,435.02, 20,149.92 and 3,948.48

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Solution

The fourth proportional to 13,435.02, 20,149.92 and 3,948.48 is: 5,921.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.02 : 20,149.92 = 3,948.48 : x
  2. Step 2: Convert to fraction form
    13,435.02/20,149.92 = 3,948.48/x
  3. Step 3: Cross multiply
    13,435.02x = 20,149.92 × 3,948.48
  4. Step 4: Simplify right side
    13,435.02x = 79,561,556.12
  5. Step 5: Solve for x
    x = 79,561,556.12/13,435.02
  6. Step 6: Final answer
    x = 5,921.95

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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.