Home / 16,870.60-25,305.90-5,183.80

Finding the Fourth Proportional to 16,870.60, 25,305.90 and 5,183.80

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Solution

The fourth proportional to 16,870.60, 25,305.90 and 5,183.80 is: 7,775.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,870.60 : 25,305.90 = 5,183.80 : x
  2. Step 2: Convert to fraction form
    16,870.60/25,305.90 = 5,183.80/x
  3. Step 3: Cross multiply
    16,870.60x = 25,305.90 × 5,183.80
  4. Step 4: Simplify right side
    16,870.60x = 131,180,724.42
  5. Step 5: Solve for x
    x = 131,180,724.42/16,870.60
  6. Step 6: Final answer
    x = 7,775.70

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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.