Home / 13,413.68-20,122.32-5,096.78

Finding the Fourth Proportional to 13,413.68, 20,122.32 and 5,096.78

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Solution

The fourth proportional to 13,413.68, 20,122.32 and 5,096.78 is: 7,645.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.68 : 20,122.32 = 5,096.78 : x
  2. Step 2: Convert to fraction form
    13,413.68/20,122.32 = 5,096.78/x
  3. Step 3: Cross multiply
    13,413.68x = 20,122.32 × 5,096.78
  4. Step 4: Simplify right side
    13,413.68x = 102,559,038.13
  5. Step 5: Solve for x
    x = 102,559,038.13/13,413.68
  6. Step 6: Final answer
    x = 7,645.85

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1.5x scale

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.