Home / 18,553.89-27,831.13-5,406.98

Finding the Fourth Proportional to 18,553.89, 27,831.13 and 5,406.98

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Solution

The fourth proportional to 18,553.89, 27,831.13 and 5,406.98 is: 8,110.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.89 : 27,831.13 = 5,406.98 : x
  2. Step 2: Convert to fraction form
    18,553.89/27,831.13 = 5,406.98/x
  3. Step 3: Cross multiply
    18,553.89x = 27,831.13 × 5,406.98
  4. Step 4: Simplify right side
    18,553.89x = 150,482,363.29
  5. Step 5: Solve for x
    x = 150,482,363.29/18,553.89
  6. Step 6: Final answer
    x = 8,110.56

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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.