Home / 8,143.22-12,214.80-3,758.28

Finding the Fourth Proportional to 8,143.22, 12,214.80 and 3,758.28

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Solution

The fourth proportional to 8,143.22, 12,214.80 and 3,758.28 is: 5,637.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.22 : 12,214.80 = 3,758.28 : x
  2. Step 2: Convert to fraction form
    8,143.22/12,214.80 = 3,758.28/x
  3. Step 3: Cross multiply
    8,143.22x = 12,214.80 × 3,758.28
  4. Step 4: Simplify right side
    8,143.22x = 45,906,638.54
  5. Step 5: Solve for x
    x = 45,906,638.54/8,143.22
  6. Step 6: Final answer
    x = 5,637.41

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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.