Home / 8,418.42-11,617.32-4,641.48

Finding the Fourth Proportional to 8,418.42, 11,617.32 and 4,641.48

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Solution

The fourth proportional to 8,418.42, 11,617.32 and 4,641.48 is: 6,405.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.42 : 11,617.32 = 4,641.48 : x
  2. Step 2: Convert to fraction form
    8,418.42/11,617.32 = 4,641.48/x
  3. Step 3: Cross multiply
    8,418.42x = 11,617.32 × 4,641.48
  4. Step 4: Simplify right side
    8,418.42x = 53,921,558.43
  5. Step 5: Solve for x
    x = 53,921,558.43/8,418.42
  6. Step 6: Final answer
    x = 6,405.19

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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.