Home / 13,176.52-18,198.59-8,862.12

Finding the Fourth Proportional to 13,176.52, 18,198.59 and 8,862.12

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Solution

The fourth proportional to 13,176.52, 18,198.59 and 8,862.12 is: 12,239.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.52 : 18,198.59 = 8,862.12 : x
  2. Step 2: Convert to fraction form
    13,176.52/18,198.59 = 8,862.12/x
  3. Step 3: Cross multiply
    13,176.52x = 18,198.59 × 8,862.12
  4. Step 4: Simplify right side
    13,176.52x = 161,278,044.10
  5. Step 5: Solve for x
    x = 161,278,044.10/13,176.52
  6. Step 6: Final answer
    x = 12,239.81

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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.