Home / 13,790.46-20,682.84-3,927.09

Finding the Fourth Proportional to 13,790.46, 20,682.84 and 3,927.09

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Solution

The fourth proportional to 13,790.46, 20,682.84 and 3,927.09 is: 5,889.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790.46 : 20,682.84 = 3,927.09 : x
  2. Step 2: Convert to fraction form
    13,790.46/20,682.84 = 3,927.09/x
  3. Step 3: Cross multiply
    13,790.46x = 20,682.84 × 3,927.09
  4. Step 4: Simplify right side
    13,790.46x = 81,223,374.14
  5. Step 5: Solve for x
    x = 81,223,374.14/13,790.46
  6. Step 6: Final answer
    x = 5,889.82

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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.