Home / 7,937.22-11,889.68-5,155.46

Finding the Fourth Proportional to 7,937.22, 11,889.68 and 5,155.46

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Solution

The fourth proportional to 7,937.22, 11,889.68 and 5,155.46 is: 7,722.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.22 : 11,889.68 = 5,155.46 : x
  2. Step 2: Convert to fraction form
    7,937.22/11,889.68 = 5,155.46/x
  3. Step 3: Cross multiply
    7,937.22x = 11,889.68 × 5,155.46
  4. Step 4: Simplify right side
    7,937.22x = 61,296,769.65
  5. Step 5: Solve for x
    x = 61,296,769.65/7,937.22
  6. Step 6: Final answer
    x = 7,722.70

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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.