Home / 8,781.26-13,169.15-2,936.51

Finding the Fourth Proportional to 8,781.26, 13,169.15 and 2,936.51

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Solution

The fourth proportional to 8,781.26, 13,169.15 and 2,936.51 is: 4,403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.26 : 13,169.15 = 2,936.51 : x
  2. Step 2: Convert to fraction form
    8,781.26/13,169.15 = 2,936.51/x
  3. Step 3: Cross multiply
    8,781.26x = 13,169.15 × 2,936.51
  4. Step 4: Simplify right side
    8,781.26x = 38,671,260.14
  5. Step 5: Solve for x
    x = 38,671,260.14/8,781.26
  6. Step 6: Final answer
    x = 4,403.84

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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.