Home / 11,387.48-17,088.90-3,992

Finding the Fourth Proportional to 11,387.48, 17,088.90 and 3,992

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Solution

The fourth proportional to 11,387.48, 17,088.90 and 3,992 is: 5,990.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.48 : 17,088.90 = 3,992 : x
  2. Step 2: Convert to fraction form
    11,387.48/17,088.90 = 3,992/x
  3. Step 3: Cross multiply
    11,387.48x = 17,088.90 × 3,992
  4. Step 4: Simplify right side
    11,387.48x = 68,218,888.80
  5. Step 5: Solve for x
    x = 68,218,888.80/11,387.48
  6. Step 6: Final answer
    x = 5,990.69

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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.