Home / 18,491.82-25,518.94-10,108.32

Finding the Fourth Proportional to 18,491.82, 25,518.94 and 10,108.32

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Solution

The fourth proportional to 18,491.82, 25,518.94 and 10,108.32 is: 13,949.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.82 : 25,518.94 = 10,108.32 : x
  2. Step 2: Convert to fraction form
    18,491.82/25,518.94 = 10,108.32/x
  3. Step 3: Cross multiply
    18,491.82x = 25,518.94 × 10,108.32
  4. Step 4: Simplify right side
    18,491.82x = 257,953,611.58
  5. Step 5: Solve for x
    x = 257,953,611.58/18,491.82
  6. Step 6: Final answer
    x = 13,949.61

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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.