Home / 18,631.89-27,949.66-6,788.88

Finding the Fourth Proportional to 18,631.89, 27,949.66 and 6,788.88

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Solution

The fourth proportional to 18,631.89, 27,949.66 and 6,788.88 is: 10,183.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.89 : 27,949.66 = 6,788.88 : x
  2. Step 2: Convert to fraction form
    18,631.89/27,949.66 = 6,788.88/x
  3. Step 3: Cross multiply
    18,631.89x = 27,949.66 × 6,788.88
  4. Step 4: Simplify right side
    18,631.89x = 189,746,870.81
  5. Step 5: Solve for x
    x = 189,746,870.81/18,631.89
  6. Step 6: Final answer
    x = 10,183.98

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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.