Home / 8,613.14-12,918.45-4,109.18

Finding the Fourth Proportional to 8,613.14, 12,918.45 and 4,109.18

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Solution

The fourth proportional to 8,613.14, 12,918.45 and 4,109.18 is: 6,163.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.14 : 12,918.45 = 4,109.18 : x
  2. Step 2: Convert to fraction form
    8,613.14/12,918.45 = 4,109.18/x
  3. Step 3: Cross multiply
    8,613.14x = 12,918.45 × 4,109.18
  4. Step 4: Simplify right side
    8,613.14x = 53,084,236.37
  5. Step 5: Solve for x
    x = 53,084,236.37/8,613.14
  6. Step 6: Final answer
    x = 6,163.17

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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.