Home / 12,255.44-18,381.24-5,328.08

Finding the Fourth Proportional to 12,255.44, 18,381.24 and 5,328.08

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Solution

The fourth proportional to 12,255.44, 18,381.24 and 5,328.08 is: 7,991.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.44 : 18,381.24 = 5,328.08 : x
  2. Step 2: Convert to fraction form
    12,255.44/18,381.24 = 5,328.08/x
  3. Step 3: Cross multiply
    12,255.44x = 18,381.24 × 5,328.08
  4. Step 4: Simplify right side
    12,255.44x = 97,936,717.22
  5. Step 5: Solve for x
    x = 97,936,717.22/12,255.44
  6. Step 6: Final answer
    x = 7,991.29

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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.