Home / 13,588.79-20,381.82-3,729.06

Finding the Fourth Proportional to 13,588.79, 20,381.82 and 3,729.06

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Solution

The fourth proportional to 13,588.79, 20,381.82 and 3,729.06 is: 5,593.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.79 : 20,381.82 = 3,729.06 : x
  2. Step 2: Convert to fraction form
    13,588.79/20,381.82 = 3,729.06/x
  3. Step 3: Cross multiply
    13,588.79x = 20,381.82 × 3,729.06
  4. Step 4: Simplify right side
    13,588.79x = 76,005,029.69
  5. Step 5: Solve for x
    x = 76,005,029.69/13,588.79
  6. Step 6: Final answer
    x = 5,593.22

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1.5x scale

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.