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Finding the Fourth Proportional to 8,985.59, 13,477.89 and 2,745.05

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Solution

The fourth proportional to 8,985.59, 13,477.89 and 2,745.05 is: 4,117.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.59 : 13,477.89 = 2,745.05 : x
  2. Step 2: Convert to fraction form
    8,985.59/13,477.89 = 2,745.05/x
  3. Step 3: Cross multiply
    8,985.59x = 13,477.89 × 2,745.05
  4. Step 4: Simplify right side
    8,985.59x = 36,997,414.56
  5. Step 5: Solve for x
    x = 36,997,414.56/8,985.59
  6. Step 6: Final answer
    x = 4,117.42

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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.