Home / 13,786.56-20,681.75-4,424.38

Finding the Fourth Proportional to 13,786.56, 20,681.75 and 4,424.38

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Solution

The fourth proportional to 13,786.56, 20,681.75 and 4,424.38 is: 6,637.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.56 : 20,681.75 = 4,424.38 : x
  2. Step 2: Convert to fraction form
    13,786.56/20,681.75 = 4,424.38/x
  3. Step 3: Cross multiply
    13,786.56x = 20,681.75 × 4,424.38
  4. Step 4: Simplify right side
    13,786.56x = 91,503,921.07
  5. Step 5: Solve for x
    x = 91,503,921.07/13,786.56
  6. Step 6: Final answer
    x = 6,637.18

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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.