Home / 8,424.66-12,636.84-2,581.14

Finding the Fourth Proportional to 8,424.66, 12,636.84 and 2,581.14

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Solution

The fourth proportional to 8,424.66, 12,636.84 and 2,581.14 is: 3,871.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.66 : 12,636.84 = 2,581.14 : x
  2. Step 2: Convert to fraction form
    8,424.66/12,636.84 = 2,581.14/x
  3. Step 3: Cross multiply
    8,424.66x = 12,636.84 × 2,581.14
  4. Step 4: Simplify right side
    8,424.66x = 32,617,453.20
  5. Step 5: Solve for x
    x = 32,617,453.20/8,424.66
  6. Step 6: Final answer
    x = 3,871.66

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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.