Home / 8,077.06-12,118.62-2,812.46

Finding the Fourth Proportional to 8,077.06, 12,118.62 and 2,812.46

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Solution

The fourth proportional to 8,077.06, 12,118.62 and 2,812.46 is: 4,219.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.06 : 12,118.62 = 2,812.46 : x
  2. Step 2: Convert to fraction form
    8,077.06/12,118.62 = 2,812.46/x
  3. Step 3: Cross multiply
    8,077.06x = 12,118.62 × 2,812.46
  4. Step 4: Simplify right side
    8,077.06x = 34,083,174.85
  5. Step 5: Solve for x
    x = 34,083,174.85/8,077.06
  6. Step 6: Final answer
    x = 4,219.75

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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.