Home / 18,186.98-25,098.32-10,121.28

Finding the Fourth Proportional to 18,186.98, 25,098.32 and 10,121.28

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Solution

The fourth proportional to 18,186.98, 25,098.32 and 10,121.28 is: 13,967.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,186.98 : 25,098.32 = 10,121.28 : x
  2. Step 2: Convert to fraction form
    18,186.98/25,098.32 = 10,121.28/x
  3. Step 3: Cross multiply
    18,186.98x = 25,098.32 × 10,121.28
  4. Step 4: Simplify right side
    18,186.98x = 254,027,124.25
  5. Step 5: Solve for x
    x = 254,027,124.25/18,186.98
  6. Step 6: Final answer
    x = 13,967.53

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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.