Home / 13,523.85-18,660.62-7,555.56

Finding the Fourth Proportional to 13,523.85, 18,660.62 and 7,555.56

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Solution

The fourth proportional to 13,523.85, 18,660.62 and 7,555.56 is: 10,425.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.85 : 18,660.62 = 7,555.56 : x
  2. Step 2: Convert to fraction form
    13,523.85/18,660.62 = 7,555.56/x
  3. Step 3: Cross multiply
    13,523.85x = 18,660.62 × 7,555.56
  4. Step 4: Simplify right side
    13,523.85x = 140,991,396.27
  5. Step 5: Solve for x
    x = 140,991,396.27/13,523.85
  6. Step 6: Final answer
    x = 10,425.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.