Home / 12,221.46-18,356.74-11,876.94

Finding the Fourth Proportional to 12,221.46, 18,356.74 and 11,876.94

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Solution

The fourth proportional to 12,221.46, 18,356.74 and 11,876.94 is: 17,839.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221.46 : 18,356.74 = 11,876.94 : x
  2. Step 2: Convert to fraction form
    12,221.46/18,356.74 = 11,876.94/x
  3. Step 3: Cross multiply
    12,221.46x = 18,356.74 × 11,876.94
  4. Step 4: Simplify right side
    12,221.46x = 218,021,899.58
  5. Step 5: Solve for x
    x = 218,021,899.58/12,221.46
  6. Step 6: Final answer
    x = 17,839.27

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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.