Home / 8,215.02-12,321.72-4,516.02

Finding the Fourth Proportional to 8,215.02, 12,321.72 and 4,516.02

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Solution

The fourth proportional to 8,215.02, 12,321.72 and 4,516.02 is: 6,773.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.02 : 12,321.72 = 4,516.02 : x
  2. Step 2: Convert to fraction form
    8,215.02/12,321.72 = 4,516.02/x
  3. Step 3: Cross multiply
    8,215.02x = 12,321.72 × 4,516.02
  4. Step 4: Simplify right side
    8,215.02x = 55,645,133.95
  5. Step 5: Solve for x
    x = 55,645,133.95/8,215.02
  6. Step 6: Final answer
    x = 6,773.58

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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.