Home / 8,278.79-12,418.80-2,435.66

Finding the Fourth Proportional to 8,278.79, 12,418.80 and 2,435.66

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Solution

The fourth proportional to 8,278.79, 12,418.80 and 2,435.66 is: 3,653.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.79 : 12,418.80 = 2,435.66 : x
  2. Step 2: Convert to fraction form
    8,278.79/12,418.80 = 2,435.66/x
  3. Step 3: Cross multiply
    8,278.79x = 12,418.80 × 2,435.66
  4. Step 4: Simplify right side
    8,278.79x = 30,247,906.22
  5. Step 5: Solve for x
    x = 30,247,906.22/8,278.79
  6. Step 6: Final answer
    x = 3,653.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.