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Finding the Fourth Proportional to 8,878.37, 12,249.70 and 5,101.34

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Solution

The fourth proportional to 8,878.37, 12,249.70 and 5,101.34 is: 7,038.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.37 : 12,249.70 = 5,101.34 : x
  2. Step 2: Convert to fraction form
    8,878.37/12,249.70 = 5,101.34/x
  3. Step 3: Cross multiply
    8,878.37x = 12,249.70 × 5,101.34
  4. Step 4: Simplify right side
    8,878.37x = 62,489,810.60
  5. Step 5: Solve for x
    x = 62,489,810.60/8,878.37
  6. Step 6: Final answer
    x = 7,038.44

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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.