Home / 13,705.96-18,917.22-8,737

Finding the Fourth Proportional to 13,705.96, 18,917.22 and 8,737

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Solution

The fourth proportional to 13,705.96, 18,917.22 and 8,737 is: 12,058.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.96 : 18,917.22 = 8,737 : x
  2. Step 2: Convert to fraction form
    13,705.96/18,917.22 = 8,737/x
  3. Step 3: Cross multiply
    13,705.96x = 18,917.22 × 8,737
  4. Step 4: Simplify right side
    13,705.96x = 165,279,751.14
  5. Step 5: Solve for x
    x = 165,279,751.14/13,705.96
  6. Step 6: Final answer
    x = 12,058.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.