Home / 13,623.89-20,434.29-3,764.57

Finding the Fourth Proportional to 13,623.89, 20,434.29 and 3,764.57

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Solution

The fourth proportional to 13,623.89, 20,434.29 and 3,764.57 is: 5,646.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.89 : 20,434.29 = 3,764.57 : x
  2. Step 2: Convert to fraction form
    13,623.89/20,434.29 = 3,764.57/x
  3. Step 3: Cross multiply
    13,623.89x = 20,434.29 × 3,764.57
  4. Step 4: Simplify right side
    13,623.89x = 76,926,212.93
  5. Step 5: Solve for x
    x = 76,926,212.93/13,623.89
  6. Step 6: Final answer
    x = 5,646.42

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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.