Home / 11,919.56-16,449.05-6,614.38

Finding the Fourth Proportional to 11,919.56, 16,449.05 and 6,614.38

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Solution

The fourth proportional to 11,919.56, 16,449.05 and 6,614.38 is: 9,127.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.56 : 16,449.05 = 6,614.38 : x
  2. Step 2: Convert to fraction form
    11,919.56/16,449.05 = 6,614.38/x
  3. Step 3: Cross multiply
    11,919.56x = 16,449.05 × 6,614.38
  4. Step 4: Simplify right side
    11,919.56x = 108,800,332.10
  5. Step 5: Solve for x
    x = 108,800,332.10/11,919.56
  6. Step 6: Final answer
    x = 9,127.89

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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.