Home / 18,716.77-25,831.20-11,545.23

Finding the Fourth Proportional to 18,716.77, 25,831.20 and 11,545.23

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Solution

The fourth proportional to 18,716.77, 25,831.20 and 11,545.23 is: 15,933.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,716.77 : 25,831.20 = 11,545.23 : x
  2. Step 2: Convert to fraction form
    18,716.77/25,831.20 = 11,545.23/x
  3. Step 3: Cross multiply
    18,716.77x = 25,831.20 × 11,545.23
  4. Step 4: Simplify right side
    18,716.77x = 298,227,285.34
  5. Step 5: Solve for x
    x = 298,227,285.34/18,716.77
  6. Step 6: Final answer
    x = 15,933.69

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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.