Home / 8,872.29-13,309.11-5,174.89

Finding the Fourth Proportional to 8,872.29, 13,309.11 and 5,174.89

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Solution

The fourth proportional to 8,872.29, 13,309.11 and 5,174.89 is: 7,762.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.29 : 13,309.11 = 5,174.89 : x
  2. Step 2: Convert to fraction form
    8,872.29/13,309.11 = 5,174.89/x
  3. Step 3: Cross multiply
    8,872.29x = 13,309.11 × 5,174.89
  4. Step 4: Simplify right side
    8,872.29x = 68,873,087.83
  5. Step 5: Solve for x
    x = 68,873,087.83/8,872.29
  6. Step 6: Final answer
    x = 7,762.72

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1.5x scale

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.