Home / 8,424.12-12,636.18-2,268.12

Finding the Fourth Proportional to 8,424.12, 12,636.18 and 2,268.12

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Solution

The fourth proportional to 8,424.12, 12,636.18 and 2,268.12 is: 3,402.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.12 : 12,636.18 = 2,268.12 : x
  2. Step 2: Convert to fraction form
    8,424.12/12,636.18 = 2,268.12/x
  3. Step 3: Cross multiply
    8,424.12x = 12,636.18 × 2,268.12
  4. Step 4: Simplify right side
    8,424.12x = 28,660,372.58
  5. Step 5: Solve for x
    x = 28,660,372.58/8,424.12
  6. Step 6: Final answer
    x = 3,402.18

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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.