Home / 8,381.72-11,567.39-5,544.18

Finding the Fourth Proportional to 8,381.72, 11,567.39 and 5,544.18

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Solution

The fourth proportional to 8,381.72, 11,567.39 and 5,544.18 is: 7,651.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,381.72 : 11,567.39 = 5,544.18 : x
  2. Step 2: Convert to fraction form
    8,381.72/11,567.39 = 5,544.18/x
  3. Step 3: Cross multiply
    8,381.72x = 11,567.39 × 5,544.18
  4. Step 4: Simplify right side
    8,381.72x = 64,131,707.95
  5. Step 5: Solve for x
    x = 64,131,707.95/8,381.72
  6. Step 6: Final answer
    x = 7,651.38

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Half scale
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Double scale
Find fourth proportional to 8,382.72, 11,568.77 and 5,545.18
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.