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Finding the Fourth Proportional to 7,992.54, 11,039.58 and 5,645.16

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Solution

The fourth proportional to 7,992.54, 11,039.58 and 5,645.16 is: 7,797.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.54 : 11,039.58 = 5,645.16 : x
  2. Step 2: Convert to fraction form
    7,992.54/11,039.58 = 5,645.16/x
  3. Step 3: Cross multiply
    7,992.54x = 11,039.58 × 5,645.16
  4. Step 4: Simplify right side
    7,992.54x = 62,320,195.43
  5. Step 5: Solve for x
    x = 62,320,195.43/7,992.54
  6. Step 6: Final answer
    x = 7,797.30

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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.