Home / 11,943.61-17,922.61-4,157.89

Finding the Fourth Proportional to 11,943.61, 17,922.61 and 4,157.89

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Solution

The fourth proportional to 11,943.61, 17,922.61 and 4,157.89 is: 6,239.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.61 : 17,922.61 = 4,157.89 : x
  2. Step 2: Convert to fraction form
    11,943.61/17,922.61 = 4,157.89/x
  3. Step 3: Cross multiply
    11,943.61x = 17,922.61 × 4,157.89
  4. Step 4: Simplify right side
    11,943.61x = 74,520,201.28
  5. Step 5: Solve for x
    x = 74,520,201.28/11,943.61
  6. Step 6: Final answer
    x = 6,239.34

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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.