Home / 8,619.92-12,926.67-3,071.78

Finding the Fourth Proportional to 8,619.92, 12,926.67 and 3,071.78

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Solution

The fourth proportional to 8,619.92, 12,926.67 and 3,071.78 is: 4,606.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.92 : 12,926.67 = 3,071.78 : x
  2. Step 2: Convert to fraction form
    8,619.92/12,926.67 = 3,071.78/x
  3. Step 3: Cross multiply
    8,619.92x = 12,926.67 × 3,071.78
  4. Step 4: Simplify right side
    8,619.92x = 39,707,821.74
  5. Step 5: Solve for x
    x = 39,707,821.74/8,619.92
  6. Step 6: Final answer
    x = 4,606.52

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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.