Home / 11,261.43-15,538.64-7,067.79

Finding the Fourth Proportional to 11,261.43, 15,538.64 and 7,067.79

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Solution

The fourth proportional to 11,261.43, 15,538.64 and 7,067.79 is: 9,752.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,261.43 : 15,538.64 = 7,067.79 : x
  2. Step 2: Convert to fraction form
    11,261.43/15,538.64 = 7,067.79/x
  3. Step 3: Cross multiply
    11,261.43x = 15,538.64 × 7,067.79
  4. Step 4: Simplify right side
    11,261.43x = 109,823,809.07
  5. Step 5: Solve for x
    x = 109,823,809.07/11,261.43
  6. Step 6: Final answer
    x = 9,752.21

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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.