Home / 11,768.40-17,657.22-5,190

Finding the Fourth Proportional to 11,768.40, 17,657.22 and 5,190

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Solution

The fourth proportional to 11,768.40, 17,657.22 and 5,190 is: 7,787.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,768.40 : 17,657.22 = 5,190 : x
  2. Step 2: Convert to fraction form
    11,768.40/17,657.22 = 5,190/x
  3. Step 3: Cross multiply
    11,768.40x = 17,657.22 × 5,190
  4. Step 4: Simplify right side
    11,768.40x = 91,640,971.80
  5. Step 5: Solve for x
    x = 91,640,971.80/11,768.40
  6. Step 6: Final answer
    x = 7,787.04

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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.