Home / 8,821.56-13,222.26-3,621

Finding the Fourth Proportional to 8,821.56, 13,222.26 and 3,621

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Solution

The fourth proportional to 8,821.56, 13,222.26 and 3,621 is: 5,427.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.56 : 13,222.26 = 3,621 : x
  2. Step 2: Convert to fraction form
    8,821.56/13,222.26 = 3,621/x
  3. Step 3: Cross multiply
    8,821.56x = 13,222.26 × 3,621
  4. Step 4: Simplify right side
    8,821.56x = 47,877,803.46
  5. Step 5: Solve for x
    x = 47,877,803.46/8,821.56
  6. Step 6: Final answer
    x = 5,427.36

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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.