Home / 13,958.08-20,912.56-7,369.76

Finding the Fourth Proportional to 13,958.08, 20,912.56 and 7,369.76

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Solution

The fourth proportional to 13,958.08, 20,912.56 and 7,369.76 is: 11,041.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.08 : 20,912.56 = 7,369.76 : x
  2. Step 2: Convert to fraction form
    13,958.08/20,912.56 = 7,369.76/x
  3. Step 3: Cross multiply
    13,958.08x = 20,912.56 × 7,369.76
  4. Step 4: Simplify right side
    13,958.08x = 154,120,548.19
  5. Step 5: Solve for x
    x = 154,120,548.19/13,958.08
  6. Step 6: Final answer
    x = 11,041.67

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1.5x scale

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.