Home / 11,810.72-17,720.94-6,544.91

Finding the Fourth Proportional to 11,810.72, 17,720.94 and 6,544.91

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Solution

The fourth proportional to 11,810.72, 17,720.94 and 6,544.91 is: 9,820.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,810.72 : 17,720.94 = 6,544.91 : x
  2. Step 2: Convert to fraction form
    11,810.72/17,720.94 = 6,544.91/x
  3. Step 3: Cross multiply
    11,810.72x = 17,720.94 × 6,544.91
  4. Step 4: Simplify right side
    11,810.72x = 115,981,957.42
  5. Step 5: Solve for x
    x = 115,981,957.42/11,810.72
  6. Step 6: Final answer
    x = 9,820.06

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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.