Home / 8,616.24-12,930.30-3,422.52

Finding the Fourth Proportional to 8,616.24, 12,930.30 and 3,422.52

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Solution

The fourth proportional to 8,616.24, 12,930.30 and 3,422.52 is: 5,136.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.24 : 12,930.30 = 3,422.52 : x
  2. Step 2: Convert to fraction form
    8,616.24/12,930.30 = 3,422.52/x
  3. Step 3: Cross multiply
    8,616.24x = 12,930.30 × 3,422.52
  4. Step 4: Simplify right side
    8,616.24x = 44,254,210.36
  5. Step 5: Solve for x
    x = 44,254,210.36/8,616.24
  6. Step 6: Final answer
    x = 5,136.14

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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.