Home / 11,816.15-17,713.28-6,618.38

Finding the Fourth Proportional to 11,816.15, 17,713.28 and 6,618.38

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Solution

The fourth proportional to 11,816.15, 17,713.28 and 6,618.38 is: 9,921.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.15 : 17,713.28 = 6,618.38 : x
  2. Step 2: Convert to fraction form
    11,816.15/17,713.28 = 6,618.38/x
  3. Step 3: Cross multiply
    11,816.15x = 17,713.28 × 6,618.38
  4. Step 4: Simplify right side
    11,816.15x = 117,233,096.43
  5. Step 5: Solve for x
    x = 117,233,096.43/11,816.15
  6. Step 6: Final answer
    x = 9,921.43

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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.