Home / 16,831.20-23,226.72-9,379.20

Finding the Fourth Proportional to 16,831.20, 23,226.72 and 9,379.20

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Solution

The fourth proportional to 16,831.20, 23,226.72 and 9,379.20 is: 12,943.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,831.20 : 23,226.72 = 9,379.20 : x
  2. Step 2: Convert to fraction form
    16,831.20/23,226.72 = 9,379.20/x
  3. Step 3: Cross multiply
    16,831.20x = 23,226.72 × 9,379.20
  4. Step 4: Simplify right side
    16,831.20x = 217,848,052.22
  5. Step 5: Solve for x
    x = 217,848,052.22/16,831.20
  6. Step 6: Final answer
    x = 12,943.11

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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.