Home / 13,831.92-19,082.61-8,517.51

Finding the Fourth Proportional to 13,831.92, 19,082.61 and 8,517.51

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Solution

The fourth proportional to 13,831.92, 19,082.61 and 8,517.51 is: 11,750.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.92 : 19,082.61 = 8,517.51 : x
  2. Step 2: Convert to fraction form
    13,831.92/19,082.61 = 8,517.51/x
  3. Step 3: Cross multiply
    13,831.92x = 19,082.61 × 8,517.51
  4. Step 4: Simplify right side
    13,831.92x = 162,536,321.50
  5. Step 5: Solve for x
    x = 162,536,321.50/13,831.92
  6. Step 6: Final answer
    x = 11,750.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.