Home / 11,664.36-17,500.86-5,427.72

Finding the Fourth Proportional to 11,664.36, 17,500.86 and 5,427.72

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Solution

The fourth proportional to 11,664.36, 17,500.86 and 5,427.72 is: 8,143.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,664.36 : 17,500.86 = 5,427.72 : x
  2. Step 2: Convert to fraction form
    11,664.36/17,500.86 = 5,427.72/x
  3. Step 3: Cross multiply
    11,664.36x = 17,500.86 × 5,427.72
  4. Step 4: Simplify right side
    11,664.36x = 94,989,767.84
  5. Step 5: Solve for x
    x = 94,989,767.84/11,664.36
  6. Step 6: Final answer
    x = 8,143.59

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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.