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Finding the Fourth Proportional to 7,520.97, 11,290.64 and 7,223.67

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Solution

The fourth proportional to 7,520.97, 11,290.64 and 7,223.67 is: 10,844.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.97 : 11,290.64 = 7,223.67 : x
  2. Step 2: Convert to fraction form
    7,520.97/11,290.64 = 7,223.67/x
  3. Step 3: Cross multiply
    7,520.97x = 11,290.64 × 7,223.67
  4. Step 4: Simplify right side
    7,520.97x = 81,559,778.99
  5. Step 5: Solve for x
    x = 81,559,778.99/7,520.97
  6. Step 6: Final answer
    x = 10,844.32

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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.