Home / 13,710.12-20,552.72-4,938.80

Finding the Fourth Proportional to 13,710.12, 20,552.72 and 4,938.80

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Solution

The fourth proportional to 13,710.12, 20,552.72 and 4,938.80 is: 7,403.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.12 : 20,552.72 = 4,938.80 : x
  2. Step 2: Convert to fraction form
    13,710.12/20,552.72 = 4,938.80/x
  3. Step 3: Cross multiply
    13,710.12x = 20,552.72 × 4,938.80
  4. Step 4: Simplify right side
    13,710.12x = 101,505,773.54
  5. Step 5: Solve for x
    x = 101,505,773.54/13,710.12
  6. Step 6: Final answer
    x = 7,403.71

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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.