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Finding the Fourth Proportional to 8,412.12, 12,616.08 and 3,483.12

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Solution

The fourth proportional to 8,412.12, 12,616.08 and 3,483.12 is: 5,223.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.12 : 12,616.08 = 3,483.12 : x
  2. Step 2: Convert to fraction form
    8,412.12/12,616.08 = 3,483.12/x
  3. Step 3: Cross multiply
    8,412.12x = 12,616.08 × 3,483.12
  4. Step 4: Simplify right side
    8,412.12x = 43,943,320.57
  5. Step 5: Solve for x
    x = 43,943,320.57/8,412.12
  6. Step 6: Final answer
    x = 5,223.81

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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.