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Finding the Fourth Proportional to 8,647.44, 11,937.42 and 5,507.88

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Solution

The fourth proportional to 8,647.44, 11,937.42 and 5,507.88 is: 7,603.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.44 : 11,937.42 = 5,507.88 : x
  2. Step 2: Convert to fraction form
    8,647.44/11,937.42 = 5,507.88/x
  3. Step 3: Cross multiply
    8,647.44x = 11,937.42 × 5,507.88
  4. Step 4: Simplify right side
    8,647.44x = 65,749,876.87
  5. Step 5: Solve for x
    x = 65,749,876.87/8,647.44
  6. Step 6: Final answer
    x = 7,603.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.