Home / 14,770.00-20,375.56-9,991.62

Finding the Fourth Proportional to 14,770.00, 20,375.56 and 9,991.62

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Solution

The fourth proportional to 14,770.00, 20,375.56 and 9,991.62 is: 13,783.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,770.00 : 20,375.56 = 9,991.62 : x
  2. Step 2: Convert to fraction form
    14,770.00/20,375.56 = 9,991.62/x
  3. Step 3: Cross multiply
    14,770.00x = 20,375.56 × 9,991.62
  4. Step 4: Simplify right side
    14,770.00x = 203,584,750.93
  5. Step 5: Solve for x
    x = 203,584,750.93/14,770.00
  6. Step 6: Final answer
    x = 13,783.67

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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.