Home / 22,198.51-30,634.88-12,767.08

Finding the Fourth Proportional to 22,198.51, 30,634.88 and 12,767.08

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Solution

The fourth proportional to 22,198.51, 30,634.88 and 12,767.08 is: 17,619.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,198.51 : 30,634.88 = 12,767.08 : x
  2. Step 2: Convert to fraction form
    22,198.51/30,634.88 = 12,767.08/x
  3. Step 3: Cross multiply
    22,198.51x = 30,634.88 × 12,767.08
  4. Step 4: Simplify right side
    22,198.51x = 391,117,963.75
  5. Step 5: Solve for x
    x = 391,117,963.75/22,198.51
  6. Step 6: Final answer
    x = 17,619.11

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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.