Home / 6,918.69-9,549.83-3,936.19

Finding the Fourth Proportional to 6,918.69, 9,549.83 and 3,936.19

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Solution

The fourth proportional to 6,918.69, 9,549.83 and 3,936.19 is: 5,433.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.69 : 9,549.83 = 3,936.19 : x
  2. Step 2: Convert to fraction form
    6,918.69/9,549.83 = 3,936.19/x
  3. Step 3: Cross multiply
    6,918.69x = 9,549.83 × 3,936.19
  4. Step 4: Simplify right side
    6,918.69x = 37,589,925.67
  5. Step 5: Solve for x
    x = 37,589,925.67/6,918.69
  6. Step 6: Final answer
    x = 5,433.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.