Home / 9,122.73-13,684.76-3,279.39

Finding the Fourth Proportional to 9,122.73, 13,684.76 and 3,279.39

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Solution

The fourth proportional to 9,122.73, 13,684.76 and 3,279.39 is: 4,919.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.73 : 13,684.76 = 3,279.39 : x
  2. Step 2: Convert to fraction form
    9,122.73/13,684.76 = 3,279.39/x
  3. Step 3: Cross multiply
    9,122.73x = 13,684.76 × 3,279.39
  4. Step 4: Simplify right side
    9,122.73x = 44,877,665.10
  5. Step 5: Solve for x
    x = 44,877,665.10/9,122.73
  6. Step 6: Final answer
    x = 4,919.32

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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.