Home / 8,936.72-12,324.60-5,579.84

Finding the Fourth Proportional to 8,936.72, 12,324.60 and 5,579.84

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Solution

The fourth proportional to 8,936.72, 12,324.60 and 5,579.84 is: 7,695.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.72 : 12,324.60 = 5,579.84 : x
  2. Step 2: Convert to fraction form
    8,936.72/12,324.60 = 5,579.84/x
  3. Step 3: Cross multiply
    8,936.72x = 12,324.60 × 5,579.84
  4. Step 4: Simplify right side
    8,936.72x = 68,769,296.06
  5. Step 5: Solve for x
    x = 68,769,296.06/8,936.72
  6. Step 6: Final answer
    x = 7,695.14

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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.