Home / 18,414.48-25,407.56-10,860.20

Finding the Fourth Proportional to 18,414.48, 25,407.56 and 10,860.20

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Solution

The fourth proportional to 18,414.48, 25,407.56 and 10,860.20 is: 14,984.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,414.48 : 25,407.56 = 10,860.20 : x
  2. Step 2: Convert to fraction form
    18,414.48/25,407.56 = 10,860.20/x
  3. Step 3: Cross multiply
    18,414.48x = 25,407.56 × 10,860.20
  4. Step 4: Simplify right side
    18,414.48x = 275,931,183.11
  5. Step 5: Solve for x
    x = 275,931,183.11/18,414.48
  6. Step 6: Final answer
    x = 14,984.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.