Home / 12,781.26-19,176.65-5,759.17

Finding the Fourth Proportional to 12,781.26, 19,176.65 and 5,759.17

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Solution

The fourth proportional to 12,781.26, 19,176.65 and 5,759.17 is: 8,640.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.26 : 19,176.65 = 5,759.17 : x
  2. Step 2: Convert to fraction form
    12,781.26/19,176.65 = 5,759.17/x
  3. Step 3: Cross multiply
    12,781.26x = 19,176.65 × 5,759.17
  4. Step 4: Simplify right side
    12,781.26x = 110,441,587.38
  5. Step 5: Solve for x
    x = 110,441,587.38/12,781.26
  6. Step 6: Final answer
    x = 8,640.90

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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.