Home / 13,413.80-20,140.45-7,502.27

Finding the Fourth Proportional to 13,413.80, 20,140.45 and 7,502.27

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Solution

The fourth proportional to 13,413.80, 20,140.45 and 7,502.27 is: 11,264.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.80 : 20,140.45 = 7,502.27 : x
  2. Step 2: Convert to fraction form
    13,413.80/20,140.45 = 7,502.27/x
  3. Step 3: Cross multiply
    13,413.80x = 20,140.45 × 7,502.27
  4. Step 4: Simplify right side
    13,413.80x = 151,099,005.96
  5. Step 5: Solve for x
    x = 151,099,005.96/13,413.80
  6. Step 6: Final answer
    x = 11,264.44

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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.