Home / 12,348.66-17,055.82-9,839.28

Finding the Fourth Proportional to 12,348.66, 17,055.82 and 9,839.28

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Solution

The fourth proportional to 12,348.66, 17,055.82 and 9,839.28 is: 13,589.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348.66 : 17,055.82 = 9,839.28 : x
  2. Step 2: Convert to fraction form
    12,348.66/17,055.82 = 9,839.28/x
  3. Step 3: Cross multiply
    12,348.66x = 17,055.82 × 9,839.28
  4. Step 4: Simplify right side
    12,348.66x = 167,816,988.61
  5. Step 5: Solve for x
    x = 167,816,988.61/12,348.66
  6. Step 6: Final answer
    x = 13,589.89

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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.