Home / 19,018.08-26,236.11-12,305.88

Finding the Fourth Proportional to 19,018.08, 26,236.11 and 12,305.88

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Solution

The fourth proportional to 19,018.08, 26,236.11 and 12,305.88 is: 16,976.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.08 : 26,236.11 = 12,305.88 : x
  2. Step 2: Convert to fraction form
    19,018.08/26,236.11 = 12,305.88/x
  3. Step 3: Cross multiply
    19,018.08x = 26,236.11 × 12,305.88
  4. Step 4: Simplify right side
    19,018.08x = 322,858,290.15
  5. Step 5: Solve for x
    x = 322,858,290.15/19,018.08
  6. Step 6: Final answer
    x = 16,976.39

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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.