Home / 12,540.89-18,811.14-3,053.24

Finding the Fourth Proportional to 12,540.89, 18,811.14 and 3,053.24

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Solution

The fourth proportional to 12,540.89, 18,811.14 and 3,053.24 is: 4,579.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.89 : 18,811.14 = 3,053.24 : x
  2. Step 2: Convert to fraction form
    12,540.89/18,811.14 = 3,053.24/x
  3. Step 3: Cross multiply
    12,540.89x = 18,811.14 × 3,053.24
  4. Step 4: Simplify right side
    12,540.89x = 57,434,831.04
  5. Step 5: Solve for x
    x = 57,434,831.04/12,540.89
  6. Step 6: Final answer
    x = 4,579.81

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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.