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Finding the Fourth Proportional to 8,998.43, 13,483.40 and 5,489.98

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Solution

The fourth proportional to 8,998.43, 13,483.40 and 5,489.98 is: 8,226.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998.43 : 13,483.40 = 5,489.98 : x
  2. Step 2: Convert to fraction form
    8,998.43/13,483.40 = 5,489.98/x
  3. Step 3: Cross multiply
    8,998.43x = 13,483.40 × 5,489.98
  4. Step 4: Simplify right side
    8,998.43x = 74,023,535.17
  5. Step 5: Solve for x
    x = 74,023,535.17/8,998.43
  6. Step 6: Final answer
    x = 8,226.28

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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.