Home / 13,624.83-20,438.58-5,305.53

Finding the Fourth Proportional to 13,624.83, 20,438.58 and 5,305.53

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Solution

The fourth proportional to 13,624.83, 20,438.58 and 5,305.53 is: 7,958.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,624.83 : 20,438.58 = 5,305.53 : x
  2. Step 2: Convert to fraction form
    13,624.83/20,438.58 = 5,305.53/x
  3. Step 3: Cross multiply
    13,624.83x = 20,438.58 × 5,305.53
  4. Step 4: Simplify right side
    13,624.83x = 108,437,499.35
  5. Step 5: Solve for x
    x = 108,437,499.35/13,624.83
  6. Step 6: Final answer
    x = 7,958.81

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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.