Home / 8,555.24-12,823.12-3,621.80

Finding the Fourth Proportional to 8,555.24, 12,823.12 and 3,621.80

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Solution

The fourth proportional to 8,555.24, 12,823.12 and 3,621.80 is: 5,428.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.24 : 12,823.12 = 3,621.80 : x
  2. Step 2: Convert to fraction form
    8,555.24/12,823.12 = 3,621.80/x
  3. Step 3: Cross multiply
    8,555.24x = 12,823.12 × 3,621.80
  4. Step 4: Simplify right side
    8,555.24x = 46,442,776.02
  5. Step 5: Solve for x
    x = 46,442,776.02/8,555.24
  6. Step 6: Final answer
    x = 5,428.58

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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.