Home / 7,513.51-11,271.28-3,129.94

Finding the Fourth Proportional to 7,513.51, 11,271.28 and 3,129.94

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Solution

The fourth proportional to 7,513.51, 11,271.28 and 3,129.94 is: 4,695.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,513.51 : 11,271.28 = 3,129.94 : x
  2. Step 2: Convert to fraction form
    7,513.51/11,271.28 = 3,129.94/x
  3. Step 3: Cross multiply
    7,513.51x = 11,271.28 × 3,129.94
  4. Step 4: Simplify right side
    7,513.51x = 35,278,413.68
  5. Step 5: Solve for x
    x = 35,278,413.68/7,513.51
  6. Step 6: Final answer
    x = 4,695.33

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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.