Home / 8,777.07-13,167.90-3,155.30

Finding the Fourth Proportional to 8,777.07, 13,167.90 and 3,155.30

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Solution

The fourth proportional to 8,777.07, 13,167.90 and 3,155.30 is: 4,733.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.07 : 13,167.90 = 3,155.30 : x
  2. Step 2: Convert to fraction form
    8,777.07/13,167.90 = 3,155.30/x
  3. Step 3: Cross multiply
    8,777.07x = 13,167.90 × 3,155.30
  4. Step 4: Simplify right side
    8,777.07x = 41,548,719.62
  5. Step 5: Solve for x
    x = 41,548,719.62/8,777.07
  6. Step 6: Final answer
    x = 4,733.78

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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.