Home / 18,183.28-27,275.64-7,787.92

Finding the Fourth Proportional to 18,183.28, 27,275.64 and 7,787.92

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Solution

The fourth proportional to 18,183.28, 27,275.64 and 7,787.92 is: 11,682.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,183.28 : 27,275.64 = 7,787.92 : x
  2. Step 2: Convert to fraction form
    18,183.28/27,275.64 = 7,787.92/x
  3. Step 3: Cross multiply
    18,183.28x = 27,275.64 × 7,787.92
  4. Step 4: Simplify right side
    18,183.28x = 212,420,502.27
  5. Step 5: Solve for x
    x = 212,420,502.27/18,183.28
  6. Step 6: Final answer
    x = 11,682.19

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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.