Home / 16,831.36-23,183.52-12,813.76

Finding the Fourth Proportional to 16,831.36, 23,183.52 and 12,813.76

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Solution

The fourth proportional to 16,831.36, 23,183.52 and 12,813.76 is: 17,649.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,831.36 : 23,183.52 = 12,813.76 : x
  2. Step 2: Convert to fraction form
    16,831.36/23,183.52 = 12,813.76/x
  3. Step 3: Cross multiply
    16,831.36x = 23,183.52 × 12,813.76
  4. Step 4: Simplify right side
    16,831.36x = 297,068,061.24
  5. Step 5: Solve for x
    x = 297,068,061.24/16,831.36
  6. Step 6: Final answer
    x = 17,649.68

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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.