Home / 18,999.24-28,469.70-11,592.60

Finding the Fourth Proportional to 18,999.24, 28,469.70 and 11,592.60

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Solution

The fourth proportional to 18,999.24, 28,469.70 and 11,592.60 is: 17,371.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999.24 : 28,469.70 = 11,592.60 : x
  2. Step 2: Convert to fraction form
    18,999.24/28,469.70 = 11,592.60/x
  3. Step 3: Cross multiply
    18,999.24x = 28,469.70 × 11,592.60
  4. Step 4: Simplify right side
    18,999.24x = 330,037,844.22
  5. Step 5: Solve for x
    x = 330,037,844.22/18,999.24
  6. Step 6: Final answer
    x = 17,371.11

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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.