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Finding the Fourth Proportional to 8,755.04, 13,134.72 and 7,788.44

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Solution

The fourth proportional to 8,755.04, 13,134.72 and 7,788.44 is: 11,684.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.04 : 13,134.72 = 7,788.44 : x
  2. Step 2: Convert to fraction form
    8,755.04/13,134.72 = 7,788.44/x
  3. Step 3: Cross multiply
    8,755.04x = 13,134.72 × 7,788.44
  4. Step 4: Simplify right side
    8,755.04x = 102,298,978.64
  5. Step 5: Solve for x
    x = 102,298,978.64/8,755.04
  6. Step 6: Final answer
    x = 11,684.58

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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.