Home / 13,731.33-20,596.79-4,371.92

Finding the Fourth Proportional to 13,731.33, 20,596.79 and 4,371.92

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Solution

The fourth proportional to 13,731.33, 20,596.79 and 4,371.92 is: 6,557.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.33 : 20,596.79 = 4,371.92 : x
  2. Step 2: Convert to fraction form
    13,731.33/20,596.79 = 4,371.92/x
  3. Step 3: Cross multiply
    13,731.33x = 20,596.79 × 4,371.92
  4. Step 4: Simplify right side
    13,731.33x = 90,047,393.29
  5. Step 5: Solve for x
    x = 90,047,393.29/13,731.33
  6. Step 6: Final answer
    x = 6,557.81

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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.