Home / 8,708.10-13,064.40-3,776.61

Finding the Fourth Proportional to 8,708.10, 13,064.40 and 3,776.61

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Solution

The fourth proportional to 8,708.10, 13,064.40 and 3,776.61 is: 5,665.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.10 : 13,064.40 = 3,776.61 : x
  2. Step 2: Convert to fraction form
    8,708.10/13,064.40 = 3,776.61/x
  3. Step 3: Cross multiply
    8,708.10x = 13,064.40 × 3,776.61
  4. Step 4: Simplify right side
    8,708.10x = 49,339,143.68
  5. Step 5: Solve for x
    x = 49,339,143.68/8,708.10
  6. Step 6: Final answer
    x = 5,665.89

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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.