Home / 11,278.76-16,912.31-4,951.05

Finding the Fourth Proportional to 11,278.76, 16,912.31 and 4,951.05

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Solution

The fourth proportional to 11,278.76, 16,912.31 and 4,951.05 is: 7,424.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.76 : 16,912.31 = 4,951.05 : x
  2. Step 2: Convert to fraction form
    11,278.76/16,912.31 = 4,951.05/x
  3. Step 3: Cross multiply
    11,278.76x = 16,912.31 × 4,951.05
  4. Step 4: Simplify right side
    11,278.76x = 83,733,707.12
  5. Step 5: Solve for x
    x = 83,733,707.12/11,278.76
  6. Step 6: Final answer
    x = 7,424.02

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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.