Home / 26,571.78-39,864.56-7,851.06

Finding the Fourth Proportional to 26,571.78, 39,864.56 and 7,851.06

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Solution

The fourth proportional to 26,571.78, 39,864.56 and 7,851.06 is: 11,778.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,571.78 : 39,864.56 = 7,851.06 : x
  2. Step 2: Convert to fraction form
    26,571.78/39,864.56 = 7,851.06/x
  3. Step 3: Cross multiply
    26,571.78x = 39,864.56 × 7,851.06
  4. Step 4: Simplify right side
    26,571.78x = 312,979,013.18
  5. Step 5: Solve for x
    x = 312,979,013.18/26,571.78
  6. Step 6: Final answer
    x = 11,778.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.