Home / 12,144.98-16,760.13-6,839.89

Finding the Fourth Proportional to 12,144.98, 16,760.13 and 6,839.89

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Solution

The fourth proportional to 12,144.98, 16,760.13 and 6,839.89 is: 9,439.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.98 : 16,760.13 = 6,839.89 : x
  2. Step 2: Convert to fraction form
    12,144.98/16,760.13 = 6,839.89/x
  3. Step 3: Cross multiply
    12,144.98x = 16,760.13 × 6,839.89
  4. Step 4: Simplify right side
    12,144.98x = 114,637,445.59
  5. Step 5: Solve for x
    x = 114,637,445.59/12,144.98
  6. Step 6: Final answer
    x = 9,439.08

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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.