Home / 18,966.03-26,166.88-12,255.61

Finding the Fourth Proportional to 18,966.03, 26,166.88 and 12,255.61

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Solution

The fourth proportional to 18,966.03, 26,166.88 and 12,255.61 is: 16,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.03 : 26,166.88 = 12,255.61 : x
  2. Step 2: Convert to fraction form
    18,966.03/26,166.88 = 12,255.61/x
  3. Step 3: Cross multiply
    18,966.03x = 26,166.88 × 12,255.61
  4. Step 4: Simplify right side
    18,966.03x = 320,691,076.20
  5. Step 5: Solve for x
    x = 320,691,076.20/18,966.03
  6. Step 6: Final answer
    x = 16,908.71

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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.