Home / 19,654.38-27,121.68-11,156.67

Finding the Fourth Proportional to 19,654.38, 27,121.68 and 11,156.67

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Solution

The fourth proportional to 19,654.38, 27,121.68 and 11,156.67 is: 15,395.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,654.38 : 27,121.68 = 11,156.67 : x
  2. Step 2: Convert to fraction form
    19,654.38/27,121.68 = 11,156.67/x
  3. Step 3: Cross multiply
    19,654.38x = 27,121.68 × 11,156.67
  4. Step 4: Simplify right side
    19,654.38x = 302,587,633.61
  5. Step 5: Solve for x
    x = 302,587,633.61/19,654.38
  6. Step 6: Final answer
    x = 15,395.43

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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.