Home / 8,815.89-13,223.29-3,621.63

Finding the Fourth Proportional to 8,815.89, 13,223.29 and 3,621.63

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Solution

The fourth proportional to 8,815.89, 13,223.29 and 3,621.63 is: 5,432.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.89 : 13,223.29 = 3,621.63 : x
  2. Step 2: Convert to fraction form
    8,815.89/13,223.29 = 3,621.63/x
  3. Step 3: Cross multiply
    8,815.89x = 13,223.29 × 3,621.63
  4. Step 4: Simplify right side
    8,815.89x = 47,889,863.76
  5. Step 5: Solve for x
    x = 47,889,863.76/8,815.89
  6. Step 6: Final answer
    x = 5,432.22

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.