Home / 11,108.40-16,672.05-4,539.30

Finding the Fourth Proportional to 11,108.40, 16,672.05 and 4,539.30

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Solution

The fourth proportional to 11,108.40, 16,672.05 and 4,539.30 is: 6,812.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.40 : 16,672.05 = 4,539.30 : x
  2. Step 2: Convert to fraction form
    11,108.40/16,672.05 = 4,539.30/x
  3. Step 3: Cross multiply
    11,108.40x = 16,672.05 × 4,539.30
  4. Step 4: Simplify right side
    11,108.40x = 75,679,436.57
  5. Step 5: Solve for x
    x = 75,679,436.57/11,108.40
  6. Step 6: Final answer
    x = 6,812.81

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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.