Home / 8,418.06-12,613.13-5,121.18

Finding the Fourth Proportional to 8,418.06, 12,613.13 and 5,121.18

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Solution

The fourth proportional to 8,418.06, 12,613.13 and 5,121.18 is: 7,673.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.06 : 12,613.13 = 5,121.18 : x
  2. Step 2: Convert to fraction form
    8,418.06/12,613.13 = 5,121.18/x
  3. Step 3: Cross multiply
    8,418.06x = 12,613.13 × 5,121.18
  4. Step 4: Simplify right side
    8,418.06x = 64,594,109.09
  5. Step 5: Solve for x
    x = 64,594,109.09/8,418.06
  6. Step 6: Final answer
    x = 7,673.28

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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.