Home / 8,418.53-11,617.11-4,641.69

Finding the Fourth Proportional to 8,418.53, 11,617.11 and 4,641.69

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Solution

The fourth proportional to 8,418.53, 11,617.11 and 4,641.69 is: 6,405.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.53 : 11,617.11 = 4,641.69 : x
  2. Step 2: Convert to fraction form
    8,418.53/11,617.11 = 4,641.69/x
  3. Step 3: Cross multiply
    8,418.53x = 11,617.11 × 4,641.69
  4. Step 4: Simplify right side
    8,418.53x = 53,923,023.32
  5. Step 5: Solve for x
    x = 53,923,023.32/8,418.53
  6. Step 6: Final answer
    x = 6,405.28

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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.