Home / 11,781.10-17,670.32-3,461.20

Finding the Fourth Proportional to 11,781.10, 17,670.32 and 3,461.20

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Solution

The fourth proportional to 11,781.10, 17,670.32 and 3,461.20 is: 5,191.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.10 : 17,670.32 = 3,461.20 : x
  2. Step 2: Convert to fraction form
    11,781.10/17,670.32 = 3,461.20/x
  3. Step 3: Cross multiply
    11,781.10x = 17,670.32 × 3,461.20
  4. Step 4: Simplify right side
    11,781.10x = 61,160,511.58
  5. Step 5: Solve for x
    x = 61,160,511.58/11,781.10
  6. Step 6: Final answer
    x = 5,191.41

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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.