Home / 13,801.30-20,687.58-6,399.67

Finding the Fourth Proportional to 13,801.30, 20,687.58 and 6,399.67

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Solution

The fourth proportional to 13,801.30, 20,687.58 and 6,399.67 is: 9,592.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.30 : 20,687.58 = 6,399.67 : x
  2. Step 2: Convert to fraction form
    13,801.30/20,687.58 = 6,399.67/x
  3. Step 3: Cross multiply
    13,801.30x = 20,687.58 × 6,399.67
  4. Step 4: Simplify right side
    13,801.30x = 132,393,685.10
  5. Step 5: Solve for x
    x = 132,393,685.10/13,801.30
  6. Step 6: Final answer
    x = 9,592.84

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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.