Home / 8,077.26-12,121.35-4,184.40

Finding the Fourth Proportional to 8,077.26, 12,121.35 and 4,184.40

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Solution

The fourth proportional to 8,077.26, 12,121.35 and 4,184.40 is: 6,279.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.26 : 12,121.35 = 4,184.40 : x
  2. Step 2: Convert to fraction form
    8,077.26/12,121.35 = 4,184.40/x
  3. Step 3: Cross multiply
    8,077.26x = 12,121.35 × 4,184.40
  4. Step 4: Simplify right side
    8,077.26x = 50,720,576.94
  5. Step 5: Solve for x
    x = 50,720,576.94/8,077.26
  6. Step 6: Final answer
    x = 6,279.43

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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.