Home / 11,868.20-17,812.86-6,326.12

Finding the Fourth Proportional to 11,868.20, 17,812.86 and 6,326.12

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Solution

The fourth proportional to 11,868.20, 17,812.86 and 6,326.12 is: 9,494.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.20 : 17,812.86 = 6,326.12 : x
  2. Step 2: Convert to fraction form
    11,868.20/17,812.86 = 6,326.12/x
  3. Step 3: Cross multiply
    11,868.20x = 17,812.86 × 6,326.12
  4. Step 4: Simplify right side
    11,868.20x = 112,686,289.90
  5. Step 5: Solve for x
    x = 112,686,289.90/11,868.20
  6. Step 6: Final answer
    x = 9,494.81

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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.