Home / 15,480.25-21,324.45-13,204.15

Finding the Fourth Proportional to 15,480.25, 21,324.45 and 13,204.15

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Solution

The fourth proportional to 15,480.25, 21,324.45 and 13,204.15 is: 18,189.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,480.25 : 21,324.45 = 13,204.15 : x
  2. Step 2: Convert to fraction form
    15,480.25/21,324.45 = 13,204.15/x
  3. Step 3: Cross multiply
    15,480.25x = 21,324.45 × 13,204.15
  4. Step 4: Simplify right side
    15,480.25x = 281,571,236.47
  5. Step 5: Solve for x
    x = 281,571,236.47/15,480.25
  6. Step 6: Final answer
    x = 18,189.06

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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.