Home / 11,414.12-15,751.32-6,378.83

Finding the Fourth Proportional to 11,414.12, 15,751.32 and 6,378.83

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Solution

The fourth proportional to 11,414.12, 15,751.32 and 6,378.83 is: 8,802.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,414.12 : 15,751.32 = 6,378.83 : x
  2. Step 2: Convert to fraction form
    11,414.12/15,751.32 = 6,378.83/x
  3. Step 3: Cross multiply
    11,414.12x = 15,751.32 × 6,378.83
  4. Step 4: Simplify right side
    11,414.12x = 100,474,913.80
  5. Step 5: Solve for x
    x = 100,474,913.80/11,414.12
  6. Step 6: Final answer
    x = 8,802.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.