Home / 13,530.24-20,286.18-4,764

Finding the Fourth Proportional to 13,530.24, 20,286.18 and 4,764

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Solution

The fourth proportional to 13,530.24, 20,286.18 and 4,764 is: 7,142.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.24 : 20,286.18 = 4,764 : x
  2. Step 2: Convert to fraction form
    13,530.24/20,286.18 = 4,764/x
  3. Step 3: Cross multiply
    13,530.24x = 20,286.18 × 4,764
  4. Step 4: Simplify right side
    13,530.24x = 96,643,361.52
  5. Step 5: Solve for x
    x = 96,643,361.52/13,530.24
  6. Step 6: Final answer
    x = 7,142.77

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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.