Home / 9,906.93-13,669.43-5,712.75

Finding the Fourth Proportional to 9,906.93, 13,669.43 and 5,712.75

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Solution

The fourth proportional to 9,906.93, 13,669.43 and 5,712.75 is: 7,882.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,906.93 : 13,669.43 = 5,712.75 : x
  2. Step 2: Convert to fraction form
    9,906.93/13,669.43 = 5,712.75/x
  3. Step 3: Cross multiply
    9,906.93x = 13,669.43 × 5,712.75
  4. Step 4: Simplify right side
    9,906.93x = 78,090,007.67
  5. Step 5: Solve for x
    x = 78,090,007.67/9,906.93
  6. Step 6: Final answer
    x = 7,882.36

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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.