Home / 8,959.26-13,439.19-4,279.80

Finding the Fourth Proportional to 8,959.26, 13,439.19 and 4,279.80

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Solution

The fourth proportional to 8,959.26, 13,439.19 and 4,279.80 is: 6,419.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.26 : 13,439.19 = 4,279.80 : x
  2. Step 2: Convert to fraction form
    8,959.26/13,439.19 = 4,279.80/x
  3. Step 3: Cross multiply
    8,959.26x = 13,439.19 × 4,279.80
  4. Step 4: Simplify right side
    8,959.26x = 57,517,045.36
  5. Step 5: Solve for x
    x = 57,517,045.36/8,959.26
  6. Step 6: Final answer
    x = 6,419.84

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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.