Home / 8,399.52-11,593.44-5,418.72

Finding the Fourth Proportional to 8,399.52, 11,593.44 and 5,418.72

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Solution

The fourth proportional to 8,399.52, 11,593.44 and 5,418.72 is: 7,479.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,399.52 : 11,593.44 = 5,418.72 : x
  2. Step 2: Convert to fraction form
    8,399.52/11,593.44 = 5,418.72/x
  3. Step 3: Cross multiply
    8,399.52x = 11,593.44 × 5,418.72
  4. Step 4: Simplify right side
    8,399.52x = 62,821,605.20
  5. Step 5: Solve for x
    x = 62,821,605.20/8,399.52
  6. Step 6: Final answer
    x = 7,479.19

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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.