Home / 13,518.48-20,287.92-8,837.28

Finding the Fourth Proportional to 13,518.48, 20,287.92 and 8,837.28

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Solution

The fourth proportional to 13,518.48, 20,287.92 and 8,837.28 is: 13,262.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.48 : 20,287.92 = 8,837.28 : x
  2. Step 2: Convert to fraction form
    13,518.48/20,287.92 = 8,837.28/x
  3. Step 3: Cross multiply
    13,518.48x = 20,287.92 × 8,837.28
  4. Step 4: Simplify right side
    13,518.48x = 179,290,029.66
  5. Step 5: Solve for x
    x = 179,290,029.66/13,518.48
  6. Step 6: Final answer
    x = 13,262.59

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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.