Home / 13,200.80-19,822.80-8,837.60

Finding the Fourth Proportional to 13,200.80, 19,822.80 and 8,837.60

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Solution

The fourth proportional to 13,200.80, 19,822.80 and 8,837.60 is: 13,270.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.80 : 19,822.80 = 8,837.60 : x
  2. Step 2: Convert to fraction form
    13,200.80/19,822.80 = 8,837.60/x
  3. Step 3: Cross multiply
    13,200.80x = 19,822.80 × 8,837.60
  4. Step 4: Simplify right side
    13,200.80x = 175,185,977.28
  5. Step 5: Solve for x
    x = 175,185,977.28/13,200.80
  6. Step 6: Final answer
    x = 13,270.86

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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.