Home / 12,539.49-17,304.69-6,874.78

Finding the Fourth Proportional to 12,539.49, 17,304.69 and 6,874.78

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Solution

The fourth proportional to 12,539.49, 17,304.69 and 6,874.78 is: 9,487.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.49 : 17,304.69 = 6,874.78 : x
  2. Step 2: Convert to fraction form
    12,539.49/17,304.69 = 6,874.78/x
  3. Step 3: Cross multiply
    12,539.49x = 17,304.69 × 6,874.78
  4. Step 4: Simplify right side
    12,539.49x = 118,965,936.72
  5. Step 5: Solve for x
    x = 118,965,936.72/12,539.49
  6. Step 6: Final answer
    x = 9,487.30

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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.