Home / 13,372.60-20,047.56-7,530.88

Finding the Fourth Proportional to 13,372.60, 20,047.56 and 7,530.88

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Solution

The fourth proportional to 13,372.60, 20,047.56 and 7,530.88 is: 11,289.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.60 : 20,047.56 = 7,530.88 : x
  2. Step 2: Convert to fraction form
    13,372.60/20,047.56 = 7,530.88/x
  3. Step 3: Cross multiply
    13,372.60x = 20,047.56 × 7,530.88
  4. Step 4: Simplify right side
    13,372.60x = 150,975,768.65
  5. Step 5: Solve for x
    x = 150,975,768.65/13,372.60
  6. Step 6: Final answer
    x = 11,289.93

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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.