Home / 18,107.72-27,166.82-7,572.30

Finding the Fourth Proportional to 18,107.72, 27,166.82 and 7,572.30

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Solution

The fourth proportional to 18,107.72, 27,166.82 and 7,572.30 is: 11,360.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.72 : 27,166.82 = 7,572.30 : x
  2. Step 2: Convert to fraction form
    18,107.72/27,166.82 = 7,572.30/x
  3. Step 3: Cross multiply
    18,107.72x = 27,166.82 × 7,572.30
  4. Step 4: Simplify right side
    18,107.72x = 205,715,417.69
  5. Step 5: Solve for x
    x = 205,715,417.69/18,107.72
  6. Step 6: Final answer
    x = 11,360.65

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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.