Home / 8,138.48-12,203.46-3,752.19

Finding the Fourth Proportional to 8,138.48, 12,203.46 and 3,752.19

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Solution

The fourth proportional to 8,138.48, 12,203.46 and 3,752.19 is: 5,626.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.48 : 12,203.46 = 3,752.19 : x
  2. Step 2: Convert to fraction form
    8,138.48/12,203.46 = 3,752.19/x
  3. Step 3: Cross multiply
    8,138.48x = 12,203.46 × 3,752.19
  4. Step 4: Simplify right side
    8,138.48x = 45,789,700.58
  5. Step 5: Solve for x
    x = 45,789,700.58/8,138.48
  6. Step 6: Final answer
    x = 5,626.32

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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.