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Finding the Fourth Proportional to 7,352.63, 11,039.88 and 7,221.41

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Solution

The fourth proportional to 7,352.63, 11,039.88 and 7,221.41 is: 10,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,352.63 : 11,039.88 = 7,221.41 : x
  2. Step 2: Convert to fraction form
    7,352.63/11,039.88 = 7,221.41/x
  3. Step 3: Cross multiply
    7,352.63x = 11,039.88 × 7,221.41
  4. Step 4: Simplify right side
    7,352.63x = 79,723,499.83
  5. Step 5: Solve for x
    x = 79,723,499.83/7,352.63
  6. Step 6: Final answer
    x = 10,842.85

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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.