Home / 13,836.23-20,765.40-7,174.62

Finding the Fourth Proportional to 13,836.23, 20,765.40 and 7,174.62

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Solution

The fourth proportional to 13,836.23, 20,765.40 and 7,174.62 is: 10,767.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,836.23 : 20,765.40 = 7,174.62 : x
  2. Step 2: Convert to fraction form
    13,836.23/20,765.40 = 7,174.62/x
  3. Step 3: Cross multiply
    13,836.23x = 20,765.40 × 7,174.62
  4. Step 4: Simplify right side
    13,836.23x = 148,983,881.05
  5. Step 5: Solve for x
    x = 148,983,881.05/13,836.23
  6. Step 6: Final answer
    x = 10,767.67

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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.