Home / 17,887.56-26,820.94-11,971.20

Finding the Fourth Proportional to 17,887.56, 26,820.94 and 11,971.20

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Solution

The fourth proportional to 17,887.56, 26,820.94 and 11,971.20 is: 17,949.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,887.56 : 26,820.94 = 11,971.20 : x
  2. Step 2: Convert to fraction form
    17,887.56/26,820.94 = 11,971.20/x
  3. Step 3: Cross multiply
    17,887.56x = 26,820.94 × 11,971.20
  4. Step 4: Simplify right side
    17,887.56x = 321,078,836.93
  5. Step 5: Solve for x
    x = 321,078,836.93/17,887.56
  6. Step 6: Final answer
    x = 17,949.84

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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.