Home / 11,831.13-17,729.68-8,137.53

Finding the Fourth Proportional to 11,831.13, 17,729.68 and 8,137.53

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Solution

The fourth proportional to 11,831.13, 17,729.68 and 8,137.53 is: 12,194.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,831.13 : 17,729.68 = 8,137.53 : x
  2. Step 2: Convert to fraction form
    11,831.13/17,729.68 = 8,137.53/x
  3. Step 3: Cross multiply
    11,831.13x = 17,729.68 × 8,137.53
  4. Step 4: Simplify right side
    11,831.13x = 144,275,802.89
  5. Step 5: Solve for x
    x = 144,275,802.89/11,831.13
  6. Step 6: Final answer
    x = 12,194.59

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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.