Home / 18,486.15-25,529.52-11,774.78

Finding the Fourth Proportional to 18,486.15, 25,529.52 and 11,774.78

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Solution

The fourth proportional to 18,486.15, 25,529.52 and 11,774.78 is: 16,261.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,486.15 : 25,529.52 = 11,774.78 : x
  2. Step 2: Convert to fraction form
    18,486.15/25,529.52 = 11,774.78/x
  3. Step 3: Cross multiply
    18,486.15x = 25,529.52 × 11,774.78
  4. Step 4: Simplify right side
    18,486.15x = 300,604,481.51
  5. Step 5: Solve for x
    x = 300,604,481.51/18,486.15
  6. Step 6: Final answer
    x = 16,261.06

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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.