Home / 13,792.51-20,672.56-6,381.31

Finding the Fourth Proportional to 13,792.51, 20,672.56 and 6,381.31

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Solution

The fourth proportional to 13,792.51, 20,672.56 and 6,381.31 is: 9,564.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.51 : 20,672.56 = 6,381.31 : x
  2. Step 2: Convert to fraction form
    13,792.51/20,672.56 = 6,381.31/x
  3. Step 3: Cross multiply
    13,792.51x = 20,672.56 × 6,381.31
  4. Step 4: Simplify right side
    13,792.51x = 131,917,997.90
  5. Step 5: Solve for x
    x = 131,917,997.90/13,792.51
  6. Step 6: Final answer
    x = 9,564.47

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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.