Home / 18,649.30-25,727.34-11,091.39

Finding the Fourth Proportional to 18,649.30, 25,727.34 and 11,091.39

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Solution

The fourth proportional to 18,649.30, 25,727.34 and 11,091.39 is: 15,300.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,649.30 : 25,727.34 = 11,091.39 : x
  2. Step 2: Convert to fraction form
    18,649.30/25,727.34 = 11,091.39/x
  3. Step 3: Cross multiply
    18,649.30x = 25,727.34 × 11,091.39
  4. Step 4: Simplify right side
    18,649.30x = 285,351,777.51
  5. Step 5: Solve for x
    x = 285,351,777.51/18,649.30
  6. Step 6: Final answer
    x = 15,300.94

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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.