Home / 8,778.68-13,170.14-2,538.51

Finding the Fourth Proportional to 8,778.68, 13,170.14 and 2,538.51

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Solution

The fourth proportional to 8,778.68, 13,170.14 and 2,538.51 is: 3,808.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.68 : 13,170.14 = 2,538.51 : x
  2. Step 2: Convert to fraction form
    8,778.68/13,170.14 = 2,538.51/x
  3. Step 3: Cross multiply
    8,778.68x = 13,170.14 × 2,538.51
  4. Step 4: Simplify right side
    8,778.68x = 33,432,604.93
  5. Step 5: Solve for x
    x = 33,432,604.93/8,778.68
  6. Step 6: Final answer
    x = 3,808.39

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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.