Home / 12,549.81-18,787.73-10,992.86

Finding the Fourth Proportional to 12,549.81, 18,787.73 and 10,992.86

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Solution

The fourth proportional to 12,549.81, 18,787.73 and 10,992.86 is: 16,456.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.81 : 18,787.73 = 10,992.86 : x
  2. Step 2: Convert to fraction form
    12,549.81/18,787.73 = 10,992.86/x
  3. Step 3: Cross multiply
    12,549.81x = 18,787.73 × 10,992.86
  4. Step 4: Simplify right side
    12,549.81x = 206,530,816.15
  5. Step 5: Solve for x
    x = 206,530,816.15/12,549.81
  6. Step 6: Final answer
    x = 16,456.89

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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.