Home / 18,198.30-25,111.62-10,240.36

Finding the Fourth Proportional to 18,198.30, 25,111.62 and 10,240.36

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Solution

The fourth proportional to 18,198.30, 25,111.62 and 10,240.36 is: 14,130.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,198.30 : 25,111.62 = 10,240.36 : x
  2. Step 2: Convert to fraction form
    18,198.30/25,111.62 = 10,240.36/x
  3. Step 3: Cross multiply
    18,198.30x = 25,111.62 × 10,240.36
  4. Step 4: Simplify right side
    18,198.30x = 257,152,028.98
  5. Step 5: Solve for x
    x = 257,152,028.98/18,198.30
  6. Step 6: Final answer
    x = 14,130.55

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Half scale
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Double scale
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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.