Home / 8,619.93-12,926.68-3,071.80

Finding the Fourth Proportional to 8,619.93, 12,926.68 and 3,071.80

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Solution

The fourth proportional to 8,619.93, 12,926.68 and 3,071.80 is: 4,606.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.93 : 12,926.68 = 3,071.80 : x
  2. Step 2: Convert to fraction form
    8,619.93/12,926.68 = 3,071.80/x
  3. Step 3: Cross multiply
    8,619.93x = 12,926.68 × 3,071.80
  4. Step 4: Simplify right side
    8,619.93x = 39,708,175.62
  5. Step 5: Solve for x
    x = 39,708,175.62/8,619.93
  6. Step 6: Final answer
    x = 4,606.55

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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.