Home / 8,379.90-11,562.66-5,395.14

Finding the Fourth Proportional to 8,379.90, 11,562.66 and 5,395.14

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Solution

The fourth proportional to 8,379.90, 11,562.66 and 5,395.14 is: 7,444.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.90 : 11,562.66 = 5,395.14 : x
  2. Step 2: Convert to fraction form
    8,379.90/11,562.66 = 5,395.14/x
  3. Step 3: Cross multiply
    8,379.90x = 11,562.66 × 5,395.14
  4. Step 4: Simplify right side
    8,379.90x = 62,382,169.47
  5. Step 5: Solve for x
    x = 62,382,169.47/8,379.90
  6. Step 6: Final answer
    x = 7,444.26

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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.