Home / 13,272.36-19,899.30-5,872.78

Finding the Fourth Proportional to 13,272.36, 19,899.30 and 5,872.78

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Solution

The fourth proportional to 13,272.36, 19,899.30 and 5,872.78 is: 8,805.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.36 : 19,899.30 = 5,872.78 : x
  2. Step 2: Convert to fraction form
    13,272.36/19,899.30 = 5,872.78/x
  3. Step 3: Cross multiply
    13,272.36x = 19,899.30 × 5,872.78
  4. Step 4: Simplify right side
    13,272.36x = 116,864,146.02
  5. Step 5: Solve for x
    x = 116,864,146.02/13,272.36
  6. Step 6: Final answer
    x = 8,805.08

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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.