Home / 10,956.36-16,434.56-3,165.80

Finding the Fourth Proportional to 10,956.36, 16,434.56 and 3,165.80

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Solution

The fourth proportional to 10,956.36, 16,434.56 and 3,165.80 is: 4,748.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,956.36 : 16,434.56 = 3,165.80 : x
  2. Step 2: Convert to fraction form
    10,956.36/16,434.56 = 3,165.80/x
  3. Step 3: Cross multiply
    10,956.36x = 16,434.56 × 3,165.80
  4. Step 4: Simplify right side
    10,956.36x = 52,028,530.05
  5. Step 5: Solve for x
    x = 52,028,530.05/10,956.36
  6. Step 6: Final answer
    x = 4,748.71

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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.