Home / 8,077.86-12,112.24-3,141.85

Finding the Fourth Proportional to 8,077.86, 12,112.24 and 3,141.85

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Solution

The fourth proportional to 8,077.86, 12,112.24 and 3,141.85 is: 4,711.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.86 : 12,112.24 = 3,141.85 : x
  2. Step 2: Convert to fraction form
    8,077.86/12,112.24 = 3,141.85/x
  3. Step 3: Cross multiply
    8,077.86x = 12,112.24 × 3,141.85
  4. Step 4: Simplify right side
    8,077.86x = 38,054,841.24
  5. Step 5: Solve for x
    x = 38,054,841.24/8,077.86
  6. Step 6: Final answer
    x = 4,711.01

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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.