Home / 15,767.25-21,758.81-8,693.82

Finding the Fourth Proportional to 15,767.25, 21,758.81 and 8,693.82

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Solution

The fourth proportional to 15,767.25, 21,758.81 and 8,693.82 is: 11,997.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,767.25 : 21,758.81 = 8,693.82 : x
  2. Step 2: Convert to fraction form
    15,767.25/21,758.81 = 8,693.82/x
  3. Step 3: Cross multiply
    15,767.25x = 21,758.81 × 8,693.82
  4. Step 4: Simplify right side
    15,767.25x = 189,167,134.09
  5. Step 5: Solve for x
    x = 189,167,134.09/15,767.25
  6. Step 6: Final answer
    x = 11,997.47

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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.