Home / 18,143.10-25,035.75-10,183.50

Finding the Fourth Proportional to 18,143.10, 25,035.75 and 10,183.50

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Solution

The fourth proportional to 18,143.10, 25,035.75 and 10,183.50 is: 14,052.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.10 : 25,035.75 = 10,183.50 : x
  2. Step 2: Convert to fraction form
    18,143.10/25,035.75 = 10,183.50/x
  3. Step 3: Cross multiply
    18,143.10x = 25,035.75 × 10,183.50
  4. Step 4: Simplify right side
    18,143.10x = 254,951,560.13
  5. Step 5: Solve for x
    x = 254,951,560.13/18,143.10
  6. Step 6: Final answer
    x = 14,052.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.