Home / 10,140.80-15,212-3,568.46

Finding the Fourth Proportional to 10,140.80, 15,212 and 3,568.46

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Solution

The fourth proportional to 10,140.80, 15,212 and 3,568.46 is: 5,352.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.80 : 15,212 = 3,568.46 : x
  2. Step 2: Convert to fraction form
    10,140.80/15,212 = 3,568.46/x
  3. Step 3: Cross multiply
    10,140.80x = 15,212 × 3,568.46
  4. Step 4: Simplify right side
    10,140.80x = 54,283,413.52
  5. Step 5: Solve for x
    x = 54,283,413.52/10,140.80
  6. Step 6: Final answer
    x = 5,352.97

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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.