Home / 9,921.92-14,881.26-3,680.47

Finding the Fourth Proportional to 9,921.92, 14,881.26 and 3,680.47

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Solution

The fourth proportional to 9,921.92, 14,881.26 and 3,680.47 is: 5,520.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.92 : 14,881.26 = 3,680.47 : x
  2. Step 2: Convert to fraction form
    9,921.92/14,881.26 = 3,680.47/x
  3. Step 3: Cross multiply
    9,921.92x = 14,881.26 × 3,680.47
  4. Step 4: Simplify right side
    9,921.92x = 54,769,956.59
  5. Step 5: Solve for x
    x = 54,769,956.59/9,921.92
  6. Step 6: Final answer
    x = 5,520.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.