Home / 12,192.68-18,290.37-6,654.11

Finding the Fourth Proportional to 12,192.68, 18,290.37 and 6,654.11

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Solution

The fourth proportional to 12,192.68, 18,290.37 and 6,654.11 is: 9,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.68 : 18,290.37 = 6,654.11 : x
  2. Step 2: Convert to fraction form
    12,192.68/18,290.37 = 6,654.11/x
  3. Step 3: Cross multiply
    12,192.68x = 18,290.37 × 6,654.11
  4. Step 4: Simplify right side
    12,192.68x = 121,706,042.47
  5. Step 5: Solve for x
    x = 121,706,042.47/12,192.68
  6. Step 6: Final answer
    x = 9,981.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.