Home / 11,921.43-16,450.81-7,444.92

Finding the Fourth Proportional to 11,921.43, 16,450.81 and 7,444.92

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Solution

The fourth proportional to 11,921.43, 16,450.81 and 7,444.92 is: 10,273.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921.43 : 16,450.81 = 7,444.92 : x
  2. Step 2: Convert to fraction form
    11,921.43/16,450.81 = 7,444.92/x
  3. Step 3: Cross multiply
    11,921.43x = 16,450.81 × 7,444.92
  4. Step 4: Simplify right side
    11,921.43x = 122,474,956.81
  5. Step 5: Solve for x
    x = 122,474,956.81/11,921.43
  6. Step 6: Final answer
    x = 10,273.51

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Double scale
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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.