Home / 13,702.48-18,910.29-7,731.97

Finding the Fourth Proportional to 13,702.48, 18,910.29 and 7,731.97

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Solution

The fourth proportional to 13,702.48, 18,910.29 and 7,731.97 is: 10,670.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702.48 : 18,910.29 = 7,731.97 : x
  2. Step 2: Convert to fraction form
    13,702.48/18,910.29 = 7,731.97/x
  3. Step 3: Cross multiply
    13,702.48x = 18,910.29 × 7,731.97
  4. Step 4: Simplify right side
    13,702.48x = 146,213,776.69
  5. Step 5: Solve for x
    x = 146,213,776.69/13,702.48
  6. Step 6: Final answer
    x = 10,670.61

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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.