Home / 18,552.47-27,828.71-5,405.87

Finding the Fourth Proportional to 18,552.47, 27,828.71 and 5,405.87

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Solution

The fourth proportional to 18,552.47, 27,828.71 and 5,405.87 is: 8,108.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,552.47 : 27,828.71 = 5,405.87 : x
  2. Step 2: Convert to fraction form
    18,552.47/27,828.71 = 5,405.87/x
  3. Step 3: Cross multiply
    18,552.47x = 27,828.71 × 5,405.87
  4. Step 4: Simplify right side
    18,552.47x = 150,438,361.50
  5. Step 5: Solve for x
    x = 150,438,361.50/18,552.47
  6. Step 6: Final answer
    x = 8,108.81

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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.