Home / 8,660.26-12,987.78-2,418.76

Finding the Fourth Proportional to 8,660.26, 12,987.78 and 2,418.76

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Solution

The fourth proportional to 8,660.26, 12,987.78 and 2,418.76 is: 3,627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.26 : 12,987.78 = 2,418.76 : x
  2. Step 2: Convert to fraction form
    8,660.26/12,987.78 = 2,418.76/x
  3. Step 3: Cross multiply
    8,660.26x = 12,987.78 × 2,418.76
  4. Step 4: Simplify right side
    8,660.26x = 31,414,322.75
  5. Step 5: Solve for x
    x = 31,414,322.75/8,660.26
  6. Step 6: Final answer
    x = 3,627.41

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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.