Home / 10,222.56-15,331.40-2,826.86

Finding the Fourth Proportional to 10,222.56, 15,331.40 and 2,826.86

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Solution

The fourth proportional to 10,222.56, 15,331.40 and 2,826.86 is: 4,239.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,222.56 : 15,331.40 = 2,826.86 : x
  2. Step 2: Convert to fraction form
    10,222.56/15,331.40 = 2,826.86/x
  3. Step 3: Cross multiply
    10,222.56x = 15,331.40 × 2,826.86
  4. Step 4: Simplify right side
    10,222.56x = 43,339,721.40
  5. Step 5: Solve for x
    x = 43,339,721.40/10,222.56
  6. Step 6: Final answer
    x = 4,239.62

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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.