Home / 18,103.56-27,174.84-7,581

Finding the Fourth Proportional to 18,103.56, 27,174.84 and 7,581

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Solution

The fourth proportional to 18,103.56, 27,174.84 and 7,581 is: 11,379.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103.56 : 27,174.84 = 7,581 : x
  2. Step 2: Convert to fraction form
    18,103.56/27,174.84 = 7,581/x
  3. Step 3: Cross multiply
    18,103.56x = 27,174.84 × 7,581
  4. Step 4: Simplify right side
    18,103.56x = 206,012,462.04
  5. Step 5: Solve for x
    x = 206,012,462.04/18,103.56
  6. Step 6: Final answer
    x = 11,379.67

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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.