Home / 18,109.10-27,163.67-4,961.58

Finding the Fourth Proportional to 18,109.10, 27,163.67 and 4,961.58

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Solution

The fourth proportional to 18,109.10, 27,163.67 and 4,961.58 is: 7,442.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.10 : 27,163.67 = 4,961.58 : x
  2. Step 2: Convert to fraction form
    18,109.10/27,163.67 = 4,961.58/x
  3. Step 3: Cross multiply
    18,109.10x = 27,163.67 × 4,961.58
  4. Step 4: Simplify right side
    18,109.10x = 134,774,721.80
  5. Step 5: Solve for x
    x = 134,774,721.80/18,109.10
  6. Step 6: Final answer
    x = 7,442.38

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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.