Home / 8,578.20-12,869.10-3,650.16

Finding the Fourth Proportional to 8,578.20, 12,869.10 and 3,650.16

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Solution

The fourth proportional to 8,578.20, 12,869.10 and 3,650.16 is: 5,476.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578.20 : 12,869.10 = 3,650.16 : x
  2. Step 2: Convert to fraction form
    8,578.20/12,869.10 = 3,650.16/x
  3. Step 3: Cross multiply
    8,578.20x = 12,869.10 × 3,650.16
  4. Step 4: Simplify right side
    8,578.20x = 46,974,274.06
  5. Step 5: Solve for x
    x = 46,974,274.06/8,578.20
  6. Step 6: Final answer
    x = 5,476.01

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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.