Home / 18,360.72-25,324.56-11,291.04

Finding the Fourth Proportional to 18,360.72, 25,324.56 and 11,291.04

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Solution

The fourth proportional to 18,360.72, 25,324.56 and 11,291.04 is: 15,573.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.72 : 25,324.56 = 11,291.04 : x
  2. Step 2: Convert to fraction form
    18,360.72/25,324.56 = 11,291.04/x
  3. Step 3: Cross multiply
    18,360.72x = 25,324.56 × 11,291.04
  4. Step 4: Simplify right side
    18,360.72x = 285,940,619.94
  5. Step 5: Solve for x
    x = 285,940,619.94/18,360.72
  6. Step 6: Final answer
    x = 15,573.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.