Home / 13,309.74-19,982.82-8,364.66

Finding the Fourth Proportional to 13,309.74, 19,982.82 and 8,364.66

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Solution

The fourth proportional to 13,309.74, 19,982.82 and 8,364.66 is: 12,558.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.74 : 19,982.82 = 8,364.66 : x
  2. Step 2: Convert to fraction form
    13,309.74/19,982.82 = 8,364.66/x
  3. Step 3: Cross multiply
    13,309.74x = 19,982.82 × 8,364.66
  4. Step 4: Simplify right side
    13,309.74x = 167,149,495.14
  5. Step 5: Solve for x
    x = 167,149,495.14/13,309.74
  6. Step 6: Final answer
    x = 12,558.43

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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.