Home / 12,062.72-18,079.07-5,821.61

Finding the Fourth Proportional to 12,062.72, 18,079.07 and 5,821.61

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Solution

The fourth proportional to 12,062.72, 18,079.07 and 5,821.61 is: 8,725.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,062.72 : 18,079.07 = 5,821.61 : x
  2. Step 2: Convert to fraction form
    12,062.72/18,079.07 = 5,821.61/x
  3. Step 3: Cross multiply
    12,062.72x = 18,079.07 × 5,821.61
  4. Step 4: Simplify right side
    12,062.72x = 105,249,175.20
  5. Step 5: Solve for x
    x = 105,249,175.20/12,062.72
  6. Step 6: Final answer
    x = 8,725.16

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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.