Home / 8,418.29-11,617.47-4,641.56

Finding the Fourth Proportional to 8,418.29, 11,617.47 and 4,641.56

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Solution

The fourth proportional to 8,418.29, 11,617.47 and 4,641.56 is: 6,405.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.29 : 11,617.47 = 4,641.56 : x
  2. Step 2: Convert to fraction form
    8,418.29/11,617.47 = 4,641.56/x
  3. Step 3: Cross multiply
    8,418.29x = 11,617.47 × 4,641.56
  4. Step 4: Simplify right side
    8,418.29x = 53,923,125.97
  5. Step 5: Solve for x
    x = 53,923,125.97/8,418.29
  6. Step 6: Final answer
    x = 6,405.48

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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.