Home / 11,270.60-15,553.32-7,078.04

Finding the Fourth Proportional to 11,270.60, 15,553.32 and 7,078.04

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Solution

The fourth proportional to 11,270.60, 15,553.32 and 7,078.04 is: 9,767.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,270.60 : 15,553.32 = 7,078.04 : x
  2. Step 2: Convert to fraction form
    11,270.60/15,553.32 = 7,078.04/x
  3. Step 3: Cross multiply
    11,270.60x = 15,553.32 × 7,078.04
  4. Step 4: Simplify right side
    11,270.60x = 110,087,021.09
  5. Step 5: Solve for x
    x = 110,087,021.09/11,270.60
  6. Step 6: Final answer
    x = 9,767.63

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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.