Home / 11,818.88-17,728.32-3,053.12

Finding the Fourth Proportional to 11,818.88, 17,728.32 and 3,053.12

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Solution

The fourth proportional to 11,818.88, 17,728.32 and 3,053.12 is: 4,579.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.88 : 17,728.32 = 3,053.12 : x
  2. Step 2: Convert to fraction form
    11,818.88/17,728.32 = 3,053.12/x
  3. Step 3: Cross multiply
    11,818.88x = 17,728.32 × 3,053.12
  4. Step 4: Simplify right side
    11,818.88x = 54,126,688.36
  5. Step 5: Solve for x
    x = 54,126,688.36/11,818.88
  6. Step 6: Final answer
    x = 4,579.68

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Similar ratio
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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.