Home / 12,874.08-17,757.05-11,815.25

Finding the Fourth Proportional to 12,874.08, 17,757.05 and 11,815.25

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Solution

The fourth proportional to 12,874.08, 17,757.05 and 11,815.25 is: 16,296.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,874.08 : 17,757.05 = 11,815.25 : x
  2. Step 2: Convert to fraction form
    12,874.08/17,757.05 = 11,815.25/x
  3. Step 3: Cross multiply
    12,874.08x = 17,757.05 × 11,815.25
  4. Step 4: Simplify right side
    12,874.08x = 209,804,045.18
  5. Step 5: Solve for x
    x = 209,804,045.18/12,874.08
  6. Step 6: Final answer
    x = 16,296.63

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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.