Home / 18,788.60-28,183.35-6,309.03

Finding the Fourth Proportional to 18,788.60, 28,183.35 and 6,309.03

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Solution

The fourth proportional to 18,788.60, 28,183.35 and 6,309.03 is: 9,463.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.60 : 28,183.35 = 6,309.03 : x
  2. Step 2: Convert to fraction form
    18,788.60/28,183.35 = 6,309.03/x
  3. Step 3: Cross multiply
    18,788.60x = 28,183.35 × 6,309.03
  4. Step 4: Simplify right side
    18,788.60x = 177,809,600.65
  5. Step 5: Solve for x
    x = 177,809,600.65/18,788.60
  6. Step 6: Final answer
    x = 9,463.70

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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.