Home / 11,816.96-17,728.52-4,421.99

Finding the Fourth Proportional to 11,816.96, 17,728.52 and 4,421.99

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Solution

The fourth proportional to 11,816.96, 17,728.52 and 4,421.99 is: 6,634.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.96 : 17,728.52 = 4,421.99 : x
  2. Step 2: Convert to fraction form
    11,816.96/17,728.52 = 4,421.99/x
  3. Step 3: Cross multiply
    11,816.96x = 17,728.52 × 4,421.99
  4. Step 4: Simplify right side
    11,816.96x = 78,395,316.04
  5. Step 5: Solve for x
    x = 78,395,316.04/11,816.96
  6. Step 6: Final answer
    x = 6,634.14

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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.