Home / 15,611.40-23,413.32-5,751.81

Finding the Fourth Proportional to 15,611.40, 23,413.32 and 5,751.81

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Solution

The fourth proportional to 15,611.40, 23,413.32 and 5,751.81 is: 8,626.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,611.40 : 23,413.32 = 5,751.81 : x
  2. Step 2: Convert to fraction form
    15,611.40/23,413.32 = 5,751.81/x
  3. Step 3: Cross multiply
    15,611.40x = 23,413.32 × 5,751.81
  4. Step 4: Simplify right side
    15,611.40x = 134,668,968.11
  5. Step 5: Solve for x
    x = 134,668,968.11/15,611.40
  6. Step 6: Final answer
    x = 8,626.32

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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.