Home / 12,150.61-18,227.28-3,831.81

Finding the Fourth Proportional to 12,150.61, 18,227.28 and 3,831.81

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Solution

The fourth proportional to 12,150.61, 18,227.28 and 3,831.81 is: 5,748.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,150.61 : 18,227.28 = 3,831.81 : x
  2. Step 2: Convert to fraction form
    12,150.61/18,227.28 = 3,831.81/x
  3. Step 3: Cross multiply
    12,150.61x = 18,227.28 × 3,831.81
  4. Step 4: Simplify right side
    12,150.61x = 69,843,398.24
  5. Step 5: Solve for x
    x = 69,843,398.24/12,150.61
  6. Step 6: Final answer
    x = 5,748.14

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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.