Home / 8,936.78-12,333.08-5,399.31

Finding the Fourth Proportional to 8,936.78, 12,333.08 and 5,399.31

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Solution

The fourth proportional to 8,936.78, 12,333.08 and 5,399.31 is: 7,451.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.78 : 12,333.08 = 5,399.31 : x
  2. Step 2: Convert to fraction form
    8,936.78/12,333.08 = 5,399.31/x
  3. Step 3: Cross multiply
    8,936.78x = 12,333.08 × 5,399.31
  4. Step 4: Simplify right side
    8,936.78x = 66,590,122.17
  5. Step 5: Solve for x
    x = 66,590,122.17/8,936.78
  6. Step 6: Final answer
    x = 7,451.24

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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.