Home / 13,350.54-20,038.36-6,781.44

Finding the Fourth Proportional to 13,350.54, 20,038.36 and 6,781.44

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Solution

The fourth proportional to 13,350.54, 20,038.36 and 6,781.44 is: 10,178.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.54 : 20,038.36 = 6,781.44 : x
  2. Step 2: Convert to fraction form
    13,350.54/20,038.36 = 6,781.44/x
  3. Step 3: Cross multiply
    13,350.54x = 20,038.36 × 6,781.44
  4. Step 4: Simplify right side
    13,350.54x = 135,888,936.04
  5. Step 5: Solve for x
    x = 135,888,936.04/13,350.54
  6. Step 6: Final answer
    x = 10,178.53

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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.