Home / 11,818.87-17,728.31-3,054.49

Finding the Fourth Proportional to 11,818.87, 17,728.31 and 3,054.49

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Solution

The fourth proportional to 11,818.87, 17,728.31 and 3,054.49 is: 4,581.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.87 : 17,728.31 = 3,054.49 : x
  2. Step 2: Convert to fraction form
    11,818.87/17,728.31 = 3,054.49/x
  3. Step 3: Cross multiply
    11,818.87x = 17,728.31 × 3,054.49
  4. Step 4: Simplify right side
    11,818.87x = 54,150,930.34
  5. Step 5: Solve for x
    x = 54,150,930.34/11,818.87
  6. Step 6: Final answer
    x = 4,581.74

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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.