Home / 12,669.66-18,998.19-5,272.16

Finding the Fourth Proportional to 12,669.66, 18,998.19 and 5,272.16

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Solution

The fourth proportional to 12,669.66, 18,998.19 and 5,272.16 is: 7,905.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.66 : 18,998.19 = 5,272.16 : x
  2. Step 2: Convert to fraction form
    12,669.66/18,998.19 = 5,272.16/x
  3. Step 3: Cross multiply
    12,669.66x = 18,998.19 × 5,272.16
  4. Step 4: Simplify right side
    12,669.66x = 100,161,402.40
  5. Step 5: Solve for x
    x = 100,161,402.40/12,669.66
  6. Step 6: Final answer
    x = 7,905.61

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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.