Home / 7,822.96-10,791.60-5,305.12

Finding the Fourth Proportional to 7,822.96, 10,791.60 and 5,305.12

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Solution

The fourth proportional to 7,822.96, 10,791.60 and 5,305.12 is: 7,318.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,822.96 : 10,791.60 = 5,305.12 : x
  2. Step 2: Convert to fraction form
    7,822.96/10,791.60 = 5,305.12/x
  3. Step 3: Cross multiply
    7,822.96x = 10,791.60 × 5,305.12
  4. Step 4: Simplify right side
    7,822.96x = 57,250,732.99
  5. Step 5: Solve for x
    x = 57,250,732.99/7,822.96
  6. Step 6: Final answer
    x = 7,318.30

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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.