Home / 13,310.50-19,968.87-4,545.43

Finding the Fourth Proportional to 13,310.50, 19,968.87 and 4,545.43

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Solution

The fourth proportional to 13,310.50, 19,968.87 and 4,545.43 is: 6,819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.50 : 19,968.87 = 4,545.43 : x
  2. Step 2: Convert to fraction form
    13,310.50/19,968.87 = 4,545.43/x
  3. Step 3: Cross multiply
    13,310.50x = 19,968.87 × 4,545.43
  4. Step 4: Simplify right side
    13,310.50x = 90,767,100.76
  5. Step 5: Solve for x
    x = 90,767,100.76/13,310.50
  6. Step 6: Final answer
    x = 6,819.21

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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.