Home / 16,826.80-25,248.30-12,876.70

Finding the Fourth Proportional to 16,826.80, 25,248.30 and 12,876.70

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Solution

The fourth proportional to 16,826.80, 25,248.30 and 12,876.70 is: 19,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,826.80 : 25,248.30 = 12,876.70 : x
  2. Step 2: Convert to fraction form
    16,826.80/25,248.30 = 12,876.70/x
  3. Step 3: Cross multiply
    16,826.80x = 25,248.30 × 12,876.70
  4. Step 4: Simplify right side
    16,826.80x = 325,114,784.61
  5. Step 5: Solve for x
    x = 325,114,784.61/16,826.80
  6. Step 6: Final answer
    x = 19,321.25

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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.