Home / 12,966.72-17,890.08-9,249.60

Finding the Fourth Proportional to 12,966.72, 17,890.08 and 9,249.60

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Solution

The fourth proportional to 12,966.72, 17,890.08 and 9,249.60 is: 12,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.72 : 17,890.08 = 9,249.60 : x
  2. Step 2: Convert to fraction form
    12,966.72/17,890.08 = 9,249.60/x
  3. Step 3: Cross multiply
    12,966.72x = 17,890.08 × 9,249.60
  4. Step 4: Simplify right side
    12,966.72x = 165,476,083.97
  5. Step 5: Solve for x
    x = 165,476,083.97/12,966.72
  6. Step 6: Final answer
    x = 12,761.60

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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.