Home / 11,921.24-16,449.14-6,883.65

Finding the Fourth Proportional to 11,921.24, 16,449.14 and 6,883.65

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Solution

The fourth proportional to 11,921.24, 16,449.14 and 6,883.65 is: 9,498.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921.24 : 16,449.14 = 6,883.65 : x
  2. Step 2: Convert to fraction form
    11,921.24/16,449.14 = 6,883.65/x
  3. Step 3: Cross multiply
    11,921.24x = 16,449.14 × 6,883.65
  4. Step 4: Simplify right side
    11,921.24x = 113,230,139.77
  5. Step 5: Solve for x
    x = 113,230,139.77/11,921.24
  6. Step 6: Final answer
    x = 9,498.18

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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.