Home / 15,322.20-22,971.61-7,921.94

Finding the Fourth Proportional to 15,322.20, 22,971.61 and 7,921.94

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Solution

The fourth proportional to 15,322.20, 22,971.61 and 7,921.94 is: 11,876.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322.20 : 22,971.61 = 7,921.94 : x
  2. Step 2: Convert to fraction form
    15,322.20/22,971.61 = 7,921.94/x
  3. Step 3: Cross multiply
    15,322.20x = 22,971.61 × 7,921.94
  4. Step 4: Simplify right side
    15,322.20x = 181,979,611.17
  5. Step 5: Solve for x
    x = 181,979,611.17/15,322.20
  6. Step 6: Final answer
    x = 11,876.86

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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.