Home / 8,780.80-13,176.39-3,238.04

Finding the Fourth Proportional to 8,780.80, 13,176.39 and 3,238.04

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Solution

The fourth proportional to 8,780.80, 13,176.39 and 3,238.04 is: 4,858.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.80 : 13,176.39 = 3,238.04 : x
  2. Step 2: Convert to fraction form
    8,780.80/13,176.39 = 3,238.04/x
  3. Step 3: Cross multiply
    8,780.80x = 13,176.39 × 3,238.04
  4. Step 4: Simplify right side
    8,780.80x = 42,665,677.88
  5. Step 5: Solve for x
    x = 42,665,677.88/8,780.80
  6. Step 6: Final answer
    x = 4,858.98

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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.