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Finding the Fourth Proportional to 8,351.48, 12,528.44 and 2,806.22

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Solution

The fourth proportional to 8,351.48, 12,528.44 and 2,806.22 is: 4,209.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.48 : 12,528.44 = 2,806.22 : x
  2. Step 2: Convert to fraction form
    8,351.48/12,528.44 = 2,806.22/x
  3. Step 3: Cross multiply
    8,351.48x = 12,528.44 × 2,806.22
  4. Step 4: Simplify right side
    8,351.48x = 35,157,558.90
  5. Step 5: Solve for x
    x = 35,157,558.90/8,351.48
  6. Step 6: Final answer
    x = 4,209.74

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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.