Home / 8,664.45-12,979.56-4,507.17

Finding the Fourth Proportional to 8,664.45, 12,979.56 and 4,507.17

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Solution

The fourth proportional to 8,664.45, 12,979.56 and 4,507.17 is: 6,751.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.45 : 12,979.56 = 4,507.17 : x
  2. Step 2: Convert to fraction form
    8,664.45/12,979.56 = 4,507.17/x
  3. Step 3: Cross multiply
    8,664.45x = 12,979.56 × 4,507.17
  4. Step 4: Simplify right side
    8,664.45x = 58,501,083.45
  5. Step 5: Solve for x
    x = 58,501,083.45/8,664.45
  6. Step 6: Final answer
    x = 6,751.85

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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.