Home / 8,479.49-12,719.23-2,636.15

Finding the Fourth Proportional to 8,479.49, 12,719.23 and 2,636.15

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Solution

The fourth proportional to 8,479.49, 12,719.23 and 2,636.15 is: 3,954.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.49 : 12,719.23 = 2,636.15 : x
  2. Step 2: Convert to fraction form
    8,479.49/12,719.23 = 2,636.15/x
  3. Step 3: Cross multiply
    8,479.49x = 12,719.23 × 2,636.15
  4. Step 4: Simplify right side
    8,479.49x = 33,529,727.98
  5. Step 5: Solve for x
    x = 33,529,727.98/8,479.49
  6. Step 6: Final answer
    x = 3,954.22

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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.