Home / 8,379.26-12,618.60-7,296.69

Finding the Fourth Proportional to 8,379.26, 12,618.60 and 7,296.69

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Solution

The fourth proportional to 8,379.26, 12,618.60 and 7,296.69 is: 10,988.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.26 : 12,618.60 = 7,296.69 : x
  2. Step 2: Convert to fraction form
    8,379.26/12,618.60 = 7,296.69/x
  3. Step 3: Cross multiply
    8,379.26x = 12,618.60 × 7,296.69
  4. Step 4: Simplify right side
    8,379.26x = 92,074,012.43
  5. Step 5: Solve for x
    x = 92,074,012.43/8,379.26
  6. Step 6: Final answer
    x = 10,988.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.