Home / 10,821.88-16,220.51-4,577.99

Finding the Fourth Proportional to 10,821.88, 16,220.51 and 4,577.99

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Solution

The fourth proportional to 10,821.88, 16,220.51 and 4,577.99 is: 6,861.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.88 : 16,220.51 = 4,577.99 : x
  2. Step 2: Convert to fraction form
    10,821.88/16,220.51 = 4,577.99/x
  3. Step 3: Cross multiply
    10,821.88x = 16,220.51 × 4,577.99
  4. Step 4: Simplify right side
    10,821.88x = 74,257,384.57
  5. Step 5: Solve for x
    x = 74,257,384.57/10,821.88
  6. Step 6: Final answer
    x = 6,861.78

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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.