Home / 8,419.27-12,636.69-4,262.19

Finding the Fourth Proportional to 8,419.27, 12,636.69 and 4,262.19

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Solution

The fourth proportional to 8,419.27, 12,636.69 and 4,262.19 is: 6,397.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.27 : 12,636.69 = 4,262.19 : x
  2. Step 2: Convert to fraction form
    8,419.27/12,636.69 = 4,262.19/x
  3. Step 3: Cross multiply
    8,419.27x = 12,636.69 × 4,262.19
  4. Step 4: Simplify right side
    8,419.27x = 53,859,952.44
  5. Step 5: Solve for x
    x = 53,859,952.44/8,419.27
  6. Step 6: Final answer
    x = 6,397.23

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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.