Home / 18,645.29-25,717.40-12,269.85

Finding the Fourth Proportional to 18,645.29, 25,717.40 and 12,269.85

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Solution

The fourth proportional to 18,645.29, 25,717.40 and 12,269.85 is: 16,923.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.29 : 25,717.40 = 12,269.85 : x
  2. Step 2: Convert to fraction form
    18,645.29/25,717.40 = 12,269.85/x
  3. Step 3: Cross multiply
    18,645.29x = 25,717.40 × 12,269.85
  4. Step 4: Simplify right side
    18,645.29x = 315,548,528.61
  5. Step 5: Solve for x
    x = 315,548,528.61/18,645.29
  6. Step 6: Final answer
    x = 16,923.77

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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.