Home / 19,679.66-27,156.94-11,180.67

Finding the Fourth Proportional to 19,679.66, 27,156.94 and 11,180.67

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Solution

The fourth proportional to 19,679.66, 27,156.94 and 11,180.67 is: 15,428.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.66 : 27,156.94 = 11,180.67 : x
  2. Step 2: Convert to fraction form
    19,679.66/27,156.94 = 11,180.67/x
  3. Step 3: Cross multiply
    19,679.66x = 27,156.94 × 11,180.67
  4. Step 4: Simplify right side
    19,679.66x = 303,632,654.56
  5. Step 5: Solve for x
    x = 303,632,654.56/19,679.66
  6. Step 6: Final answer
    x = 15,428.76

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1.5x scale

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.