Home / 11,645.19-17,469.54-5,405.85

Finding the Fourth Proportional to 11,645.19, 17,469.54 and 5,405.85

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Solution

The fourth proportional to 11,645.19, 17,469.54 and 5,405.85 is: 8,109.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,645.19 : 17,469.54 = 5,405.85 : x
  2. Step 2: Convert to fraction form
    11,645.19/17,469.54 = 5,405.85/x
  3. Step 3: Cross multiply
    11,645.19x = 17,469.54 × 5,405.85
  4. Step 4: Simplify right side
    11,645.19x = 94,437,598.43
  5. Step 5: Solve for x
    x = 94,437,598.43/11,645.19
  6. Step 6: Final answer
    x = 8,109.58

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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.