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Finding the Fourth Proportional to 8,811.52, 13,211.76 and 4,648.90

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Solution

The fourth proportional to 8,811.52, 13,211.76 and 4,648.90 is: 6,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.52 : 13,211.76 = 4,648.90 : x
  2. Step 2: Convert to fraction form
    8,811.52/13,211.76 = 4,648.90/x
  3. Step 3: Cross multiply
    8,811.52x = 13,211.76 × 4,648.90
  4. Step 4: Simplify right side
    8,811.52x = 61,420,151.06
  5. Step 5: Solve for x
    x = 61,420,151.06/8,811.52
  6. Step 6: Final answer
    x = 6,970.44

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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.