Home / 18,558.98-25,612.44-11,009.78

Finding the Fourth Proportional to 18,558.98, 25,612.44 and 11,009.78

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Solution

The fourth proportional to 18,558.98, 25,612.44 and 11,009.78 is: 15,194.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558.98 : 25,612.44 = 11,009.78 : x
  2. Step 2: Convert to fraction form
    18,558.98/25,612.44 = 11,009.78/x
  3. Step 3: Cross multiply
    18,558.98x = 25,612.44 × 11,009.78
  4. Step 4: Simplify right side
    18,558.98x = 281,987,329.66
  5. Step 5: Solve for x
    x = 281,987,329.66/18,558.98
  6. Step 6: Final answer
    x = 15,194.12

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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.