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Finding the Fourth Proportional to 8,773.62, 13,219.61 and 7,247.80

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Solution

The fourth proportional to 8,773.62, 13,219.61 and 7,247.80 is: 10,920.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773.62 : 13,219.61 = 7,247.80 : x
  2. Step 2: Convert to fraction form
    8,773.62/13,219.61 = 7,247.80/x
  3. Step 3: Cross multiply
    8,773.62x = 13,219.61 × 7,247.80
  4. Step 4: Simplify right side
    8,773.62x = 95,813,089.36
  5. Step 5: Solve for x
    x = 95,813,089.36/8,773.62
  6. Step 6: Final answer
    x = 10,920.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.