Home / 8,742.15-13,101.54-3,190.28

Finding the Fourth Proportional to 8,742.15, 13,101.54 and 3,190.28

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Solution

The fourth proportional to 8,742.15, 13,101.54 and 3,190.28 is: 4,781.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.15 : 13,101.54 = 3,190.28 : x
  2. Step 2: Convert to fraction form
    8,742.15/13,101.54 = 3,190.28/x
  3. Step 3: Cross multiply
    8,742.15x = 13,101.54 × 3,190.28
  4. Step 4: Simplify right side
    8,742.15x = 41,797,515.52
  5. Step 5: Solve for x
    x = 41,797,515.52/8,742.15
  6. Step 6: Final answer
    x = 4,781.15

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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.