Home / 8,151.22-12,210.39-3,762.58

Finding the Fourth Proportional to 8,151.22, 12,210.39 and 3,762.58

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Solution

The fourth proportional to 8,151.22, 12,210.39 and 3,762.58 is: 5,636.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.22 : 12,210.39 = 3,762.58 : x
  2. Step 2: Convert to fraction form
    8,151.22/12,210.39 = 3,762.58/x
  3. Step 3: Cross multiply
    8,151.22x = 12,210.39 × 3,762.58
  4. Step 4: Simplify right side
    8,151.22x = 45,942,569.21
  5. Step 5: Solve for x
    x = 45,942,569.21/8,151.22
  6. Step 6: Final answer
    x = 5,636.28

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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.