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Finding the Fourth Proportional to 7,803.04, 11,712.24 and 7,169.44

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Solution

The fourth proportional to 7,803.04, 11,712.24 and 7,169.44 is: 10,761.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.04 : 11,712.24 = 7,169.44 : x
  2. Step 2: Convert to fraction form
    7,803.04/11,712.24 = 7,169.44/x
  3. Step 3: Cross multiply
    7,803.04x = 11,712.24 × 7,169.44
  4. Step 4: Simplify right side
    7,803.04x = 83,970,201.95
  5. Step 5: Solve for x
    x = 83,970,201.95/7,803.04
  6. Step 6: Final answer
    x = 10,761.22

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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.