Home / 12,800.03-19,183.64-9,872.18

Finding the Fourth Proportional to 12,800.03, 19,183.64 and 9,872.18

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Solution

The fourth proportional to 12,800.03, 19,183.64 and 9,872.18 is: 14,795.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.03 : 19,183.64 = 9,872.18 : x
  2. Step 2: Convert to fraction form
    12,800.03/19,183.64 = 9,872.18/x
  3. Step 3: Cross multiply
    12,800.03x = 19,183.64 × 9,872.18
  4. Step 4: Simplify right side
    12,800.03x = 189,384,273.79
  5. Step 5: Solve for x
    x = 189,384,273.79/12,800.03
  6. Step 6: Final answer
    x = 14,795.62

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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.