Home / 11,961.99-17,946.54-6,122.70

Finding the Fourth Proportional to 11,961.99, 17,946.54 and 6,122.70

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Solution

The fourth proportional to 11,961.99, 17,946.54 and 6,122.70 is: 9,185.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.99 : 17,946.54 = 6,122.70 : x
  2. Step 2: Convert to fraction form
    11,961.99/17,946.54 = 6,122.70/x
  3. Step 3: Cross multiply
    11,961.99x = 17,946.54 × 6,122.70
  4. Step 4: Simplify right side
    11,961.99x = 109,881,280.46
  5. Step 5: Solve for x
    x = 109,881,280.46/11,961.99
  6. Step 6: Final answer
    x = 9,185.87

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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.