Home / 17,738.40-24,480.45-9,781.38

Finding the Fourth Proportional to 17,738.40, 24,480.45 and 9,781.38

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Solution

The fourth proportional to 17,738.40, 24,480.45 and 9,781.38 is: 13,499.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,738.40 : 24,480.45 = 9,781.38 : x
  2. Step 2: Convert to fraction form
    17,738.40/24,480.45 = 9,781.38/x
  3. Step 3: Cross multiply
    17,738.40x = 24,480.45 × 9,781.38
  4. Step 4: Simplify right side
    17,738.40x = 239,452,584.02
  5. Step 5: Solve for x
    x = 239,452,584.02/17,738.40
  6. Step 6: Final answer
    x = 13,499.11

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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.