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Finding the Fourth Proportional to 16,831.56, 23,227.56 and 9,379.56

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Solution

The fourth proportional to 16,831.56, 23,227.56 and 9,379.56 is: 12,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,831.56 : 23,227.56 = 9,379.56 : x
  2. Step 2: Convert to fraction form
    16,831.56/23,227.56 = 9,379.56/x
  3. Step 3: Cross multiply
    16,831.56x = 23,227.56 × 9,379.56
  4. Step 4: Simplify right side
    16,831.56x = 217,864,292.67
  5. Step 5: Solve for x
    x = 217,864,292.67/16,831.56
  6. Step 6: Final answer
    x = 12,943.80

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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.