Home / 8,778.96-13,169.52-2,939.76

Finding the Fourth Proportional to 8,778.96, 13,169.52 and 2,939.76

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Solution

The fourth proportional to 8,778.96, 13,169.52 and 2,939.76 is: 4,410.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.96 : 13,169.52 = 2,939.76 : x
  2. Step 2: Convert to fraction form
    8,778.96/13,169.52 = 2,939.76/x
  3. Step 3: Cross multiply
    8,778.96x = 13,169.52 × 2,939.76
  4. Step 4: Simplify right side
    8,778.96x = 38,715,228.12
  5. Step 5: Solve for x
    x = 38,715,228.12/8,778.96
  6. Step 6: Final answer
    x = 4,410.00

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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.