Home / 8,539.14-12,825.60-5,168.75

Finding the Fourth Proportional to 8,539.14, 12,825.60 and 5,168.75

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Solution

The fourth proportional to 8,539.14, 12,825.60 and 5,168.75 is: 7,763.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.14 : 12,825.60 = 5,168.75 : x
  2. Step 2: Convert to fraction form
    8,539.14/12,825.60 = 5,168.75/x
  3. Step 3: Cross multiply
    8,539.14x = 12,825.60 × 5,168.75
  4. Step 4: Simplify right side
    8,539.14x = 66,292,352.06
  5. Step 5: Solve for x
    x = 66,292,352.06/8,539.14
  6. Step 6: Final answer
    x = 7,763.35

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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.