Home / 8,079.72-12,126.06-4,185.24

Finding the Fourth Proportional to 8,079.72, 12,126.06 and 4,185.24

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Solution

The fourth proportional to 8,079.72, 12,126.06 and 4,185.24 is: 6,281.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.72 : 12,126.06 = 4,185.24 : x
  2. Step 2: Convert to fraction form
    8,079.72/12,126.06 = 4,185.24/x
  3. Step 3: Cross multiply
    8,079.72x = 12,126.06 × 4,185.24
  4. Step 4: Simplify right side
    8,079.72x = 50,750,471.35
  5. Step 5: Solve for x
    x = 50,750,471.35/8,079.72
  6. Step 6: Final answer
    x = 6,281.22

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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.