Home / 12,387.13-17,094.15-6,721.73

Finding the Fourth Proportional to 12,387.13, 17,094.15 and 6,721.73

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Solution

The fourth proportional to 12,387.13, 17,094.15 and 6,721.73 is: 9,275.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.13 : 17,094.15 = 6,721.73 : x
  2. Step 2: Convert to fraction form
    12,387.13/17,094.15 = 6,721.73/x
  3. Step 3: Cross multiply
    12,387.13x = 17,094.15 × 6,721.73
  4. Step 4: Simplify right side
    12,387.13x = 114,902,333.38
  5. Step 5: Solve for x
    x = 114,902,333.38/12,387.13
  6. Step 6: Final answer
    x = 9,275.94

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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.