Home / 11,931.92-16,446.90-8,102.36

Finding the Fourth Proportional to 11,931.92, 16,446.90 and 8,102.36

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Solution

The fourth proportional to 11,931.92, 16,446.90 and 8,102.36 is: 11,168.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.92 : 16,446.90 = 8,102.36 : x
  2. Step 2: Convert to fraction form
    11,931.92/16,446.90 = 8,102.36/x
  3. Step 3: Cross multiply
    11,931.92x = 16,446.90 × 8,102.36
  4. Step 4: Simplify right side
    11,931.92x = 133,258,704.68
  5. Step 5: Solve for x
    x = 133,258,704.68/11,931.92
  6. Step 6: Final answer
    x = 11,168.25

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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.