Home / 8,640.24-12,949.43-5,519.04

Finding the Fourth Proportional to 8,640.24, 12,949.43 and 5,519.04

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Solution

The fourth proportional to 8,640.24, 12,949.43 and 5,519.04 is: 8,271.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640.24 : 12,949.43 = 5,519.04 : x
  2. Step 2: Convert to fraction form
    8,640.24/12,949.43 = 5,519.04/x
  3. Step 3: Cross multiply
    8,640.24x = 12,949.43 × 5,519.04
  4. Step 4: Simplify right side
    8,640.24x = 71,468,394.55
  5. Step 5: Solve for x
    x = 71,468,394.55/8,640.24
  6. Step 6: Final answer
    x = 8,271.58

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1.5x scale

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.