Home / 11,956.06-17,931.35-3,520.39

Finding the Fourth Proportional to 11,956.06, 17,931.35 and 3,520.39

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Solution

The fourth proportional to 11,956.06, 17,931.35 and 3,520.39 is: 5,279.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,956.06 : 17,931.35 = 3,520.39 : x
  2. Step 2: Convert to fraction form
    11,956.06/17,931.35 = 3,520.39/x
  3. Step 3: Cross multiply
    11,956.06x = 17,931.35 × 3,520.39
  4. Step 4: Simplify right side
    11,956.06x = 63,125,282.49
  5. Step 5: Solve for x
    x = 63,125,282.49/11,956.06
  6. Step 6: Final answer
    x = 5,279.77

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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.