Home / 18,961.56-26,164.62-12,663

Finding the Fourth Proportional to 18,961.56, 26,164.62 and 12,663

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Solution

The fourth proportional to 18,961.56, 26,164.62 and 12,663 is: 17,473.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.56 : 26,164.62 = 12,663 : x
  2. Step 2: Convert to fraction form
    18,961.56/26,164.62 = 12,663/x
  3. Step 3: Cross multiply
    18,961.56x = 26,164.62 × 12,663
  4. Step 4: Simplify right side
    18,961.56x = 331,322,583.06
  5. Step 5: Solve for x
    x = 331,322,583.06/18,961.56
  6. Step 6: Final answer
    x = 17,473.38

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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.