Home / 11,912.68-16,444.92-7,665.76

Finding the Fourth Proportional to 11,912.68, 16,444.92 and 7,665.76

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Solution

The fourth proportional to 11,912.68, 16,444.92 and 7,665.76 is: 10,582.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.68 : 16,444.92 = 7,665.76 : x
  2. Step 2: Convert to fraction form
    11,912.68/16,444.92 = 7,665.76/x
  3. Step 3: Cross multiply
    11,912.68x = 16,444.92 × 7,665.76
  4. Step 4: Simplify right side
    11,912.68x = 126,062,809.94
  5. Step 5: Solve for x
    x = 126,062,809.94/11,912.68
  6. Step 6: Final answer
    x = 10,582.24

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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.