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Finding the Fourth Proportional to 7,321.00, 10,992.44 and 7,211.65

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Solution

The fourth proportional to 7,321.00, 10,992.44 and 7,211.65 is: 10,828.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.00 : 10,992.44 = 7,211.65 : x
  2. Step 2: Convert to fraction form
    7,321.00/10,992.44 = 7,211.65/x
  3. Step 3: Cross multiply
    7,321.00x = 10,992.44 × 7,211.65
  4. Step 4: Simplify right side
    7,321.00x = 79,273,600.52
  5. Step 5: Solve for x
    x = 79,273,600.52/7,321.00
  6. Step 6: Final answer
    x = 10,828.25

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1.5x scale

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.