Home / 18,721.06-25,832.73-11,649.76

Finding the Fourth Proportional to 18,721.06, 25,832.73 and 11,649.76

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Solution

The fourth proportional to 18,721.06, 25,832.73 and 11,649.76 is: 16,075.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.06 : 25,832.73 = 11,649.76 : x
  2. Step 2: Convert to fraction form
    18,721.06/25,832.73 = 11,649.76/x
  3. Step 3: Cross multiply
    18,721.06x = 25,832.73 × 11,649.76
  4. Step 4: Simplify right side
    18,721.06x = 300,945,104.64
  5. Step 5: Solve for x
    x = 300,945,104.64/18,721.06
  6. Step 6: Final answer
    x = 16,075.22

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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.