Home / 11,720.10-17,576.10-3,397.86

Finding the Fourth Proportional to 11,720.10, 17,576.10 and 3,397.86

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Solution

The fourth proportional to 11,720.10, 17,576.10 and 3,397.86 is: 5,095.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.10 : 17,576.10 = 3,397.86 : x
  2. Step 2: Convert to fraction form
    11,720.10/17,576.10 = 3,397.86/x
  3. Step 3: Cross multiply
    11,720.10x = 17,576.10 × 3,397.86
  4. Step 4: Simplify right side
    11,720.10x = 59,721,127.15
  5. Step 5: Solve for x
    x = 59,721,127.15/11,720.10
  6. Step 6: Final answer
    x = 5,095.62

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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.