Home / 14,183.81-21,278.03-4,189.57

Finding the Fourth Proportional to 14,183.81, 21,278.03 and 4,189.57

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Solution

The fourth proportional to 14,183.81, 21,278.03 and 4,189.57 is: 6,285.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,183.81 : 21,278.03 = 4,189.57 : x
  2. Step 2: Convert to fraction form
    14,183.81/21,278.03 = 4,189.57/x
  3. Step 3: Cross multiply
    14,183.81x = 21,278.03 × 4,189.57
  4. Step 4: Simplify right side
    14,183.81x = 89,145,775.20
  5. Step 5: Solve for x
    x = 89,145,775.20/14,183.81
  6. Step 6: Final answer
    x = 6,285.04

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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.