Home / 8,418.62-11,617.77-4,641.92

Finding the Fourth Proportional to 8,418.62, 11,617.77 and 4,641.92

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Solution

The fourth proportional to 8,418.62, 11,617.77 and 4,641.92 is: 6,405.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.62 : 11,617.77 = 4,641.92 : x
  2. Step 2: Convert to fraction form
    8,418.62/11,617.77 = 4,641.92/x
  3. Step 3: Cross multiply
    8,418.62x = 11,617.77 × 4,641.92
  4. Step 4: Simplify right side
    8,418.62x = 53,928,758.92
  5. Step 5: Solve for x
    x = 53,928,758.92/8,418.62
  6. Step 6: Final answer
    x = 6,405.89

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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.