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Finding the Fourth Proportional to 8,352.60, 12,504.60 and 8,109.60

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Solution

The fourth proportional to 8,352.60, 12,504.60 and 8,109.60 is: 12,140.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352.60 : 12,504.60 = 8,109.60 : x
  2. Step 2: Convert to fraction form
    8,352.60/12,504.60 = 8,109.60/x
  3. Step 3: Cross multiply
    8,352.60x = 12,504.60 × 8,109.60
  4. Step 4: Simplify right side
    8,352.60x = 101,407,304.16
  5. Step 5: Solve for x
    x = 101,407,304.16/8,352.60
  6. Step 6: Final answer
    x = 12,140.81

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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.