Home / 10,761.72-16,138.32-4,186.95

Finding the Fourth Proportional to 10,761.72, 16,138.32 and 4,186.95

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Solution

The fourth proportional to 10,761.72, 16,138.32 and 4,186.95 is: 6,278.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,761.72 : 16,138.32 = 4,186.95 : x
  2. Step 2: Convert to fraction form
    10,761.72/16,138.32 = 4,186.95/x
  3. Step 3: Cross multiply
    10,761.72x = 16,138.32 × 4,186.95
  4. Step 4: Simplify right side
    10,761.72x = 67,570,338.92
  5. Step 5: Solve for x
    x = 67,570,338.92/10,761.72
  6. Step 6: Final answer
    x = 6,278.77

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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.