Home / 18,812.43-25,961.19-10,428.93

Finding the Fourth Proportional to 18,812.43, 25,961.19 and 10,428.93

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Solution

The fourth proportional to 18,812.43, 25,961.19 and 10,428.93 is: 14,391.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,812.43 : 25,961.19 = 10,428.93 : x
  2. Step 2: Convert to fraction form
    18,812.43/25,961.19 = 10,428.93/x
  3. Step 3: Cross multiply
    18,812.43x = 25,961.19 × 10,428.93
  4. Step 4: Simplify right side
    18,812.43x = 270,747,433.23
  5. Step 5: Solve for x
    x = 270,747,433.23/18,812.43
  6. Step 6: Final answer
    x = 14,391.94

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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.