Home / 8,121.04-11,196.84-6,627.44

Finding the Fourth Proportional to 8,121.04, 11,196.84 and 6,627.44

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Solution

The fourth proportional to 8,121.04, 11,196.84 and 6,627.44 is: 9,137.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.04 : 11,196.84 = 6,627.44 : x
  2. Step 2: Convert to fraction form
    8,121.04/11,196.84 = 6,627.44/x
  3. Step 3: Cross multiply
    8,121.04x = 11,196.84 × 6,627.44
  4. Step 4: Simplify right side
    8,121.04x = 74,206,385.29
  5. Step 5: Solve for x
    x = 74,206,385.29/8,121.04
  6. Step 6: Final answer
    x = 9,137.55

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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.