Home / 13,851.73-20,764.79-5,529.72

Finding the Fourth Proportional to 13,851.73, 20,764.79 and 5,529.72

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Solution

The fourth proportional to 13,851.73, 20,764.79 and 5,529.72 is: 8,289.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.73 : 20,764.79 = 5,529.72 : x
  2. Step 2: Convert to fraction form
    13,851.73/20,764.79 = 5,529.72/x
  3. Step 3: Cross multiply
    13,851.73x = 20,764.79 × 5,529.72
  4. Step 4: Simplify right side
    13,851.73x = 114,823,474.56
  5. Step 5: Solve for x
    x = 114,823,474.56/13,851.73
  6. Step 6: Final answer
    x = 8,289.47

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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.