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Finding the Fourth Proportional to 8,338.62, 12,522.26 and 7,403.67

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Solution

The fourth proportional to 8,338.62, 12,522.26 and 7,403.67 is: 11,118.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.62 : 12,522.26 = 7,403.67 : x
  2. Step 2: Convert to fraction form
    8,338.62/12,522.26 = 7,403.67/x
  3. Step 3: Cross multiply
    8,338.62x = 12,522.26 × 7,403.67
  4. Step 4: Simplify right side
    8,338.62x = 92,710,680.69
  5. Step 5: Solve for x
    x = 92,710,680.69/8,338.62
  6. Step 6: Final answer
    x = 11,118.23

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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.