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Finding the Fourth Proportional to 8,883.50, 13,321.36 and 4,722.50

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Solution

The fourth proportional to 8,883.50, 13,321.36 and 4,722.50 is: 7,081.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,883.50 : 13,321.36 = 4,722.50 : x
  2. Step 2: Convert to fraction form
    8,883.50/13,321.36 = 4,722.50/x
  3. Step 3: Cross multiply
    8,883.50x = 13,321.36 × 4,722.50
  4. Step 4: Simplify right side
    8,883.50x = 62,910,122.60
  5. Step 5: Solve for x
    x = 62,910,122.60/8,883.50
  6. Step 6: Final answer
    x = 7,081.68

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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.