Home / 8,897.44-12,278.94-5,121.18

Finding the Fourth Proportional to 8,897.44, 12,278.94 and 5,121.18

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Solution

The fourth proportional to 8,897.44, 12,278.94 and 5,121.18 is: 7,067.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,897.44 : 12,278.94 = 5,121.18 : x
  2. Step 2: Convert to fraction form
    8,897.44/12,278.94 = 5,121.18/x
  3. Step 3: Cross multiply
    8,897.44x = 12,278.94 × 5,121.18
  4. Step 4: Simplify right side
    8,897.44x = 62,882,661.95
  5. Step 5: Solve for x
    x = 62,882,661.95/8,897.44
  6. Step 6: Final answer
    x = 7,067.50

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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.