Home / 8,418.62-11,617.78-4,641.93

Finding the Fourth Proportional to 8,418.62, 11,617.78 and 4,641.93

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Solution

The fourth proportional to 8,418.62, 11,617.78 and 4,641.93 is: 6,405.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.62 : 11,617.78 = 4,641.93 : x
  2. Step 2: Convert to fraction form
    8,418.62/11,617.78 = 4,641.93/x
  3. Step 3: Cross multiply
    8,418.62x = 11,617.78 × 4,641.93
  4. Step 4: Simplify right side
    8,418.62x = 53,928,921.52
  5. Step 5: Solve for x
    x = 53,928,921.52/8,418.62
  6. Step 6: Final answer
    x = 6,405.91

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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.