Home / 13,709.24-20,540.46-7,458.09

Finding the Fourth Proportional to 13,709.24, 20,540.46 and 7,458.09

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Solution

The fourth proportional to 13,709.24, 20,540.46 and 7,458.09 is: 11,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709.24 : 20,540.46 = 7,458.09 : x
  2. Step 2: Convert to fraction form
    13,709.24/20,540.46 = 7,458.09/x
  3. Step 3: Cross multiply
    13,709.24x = 20,540.46 × 7,458.09
  4. Step 4: Simplify right side
    13,709.24x = 153,192,562.03
  5. Step 5: Solve for x
    x = 153,192,562.03/13,709.24
  6. Step 6: Final answer
    x = 11,174.40

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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.