Home / 17,390.88-26,086.32-12,372.12

Finding the Fourth Proportional to 17,390.88, 26,086.32 and 12,372.12

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Solution

The fourth proportional to 17,390.88, 26,086.32 and 12,372.12 is: 18,558.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,390.88 : 26,086.32 = 12,372.12 : x
  2. Step 2: Convert to fraction form
    17,390.88/26,086.32 = 12,372.12/x
  3. Step 3: Cross multiply
    17,390.88x = 26,086.32 × 12,372.12
  4. Step 4: Simplify right side
    17,390.88x = 322,743,081.40
  5. Step 5: Solve for x
    x = 322,743,081.40/17,390.88
  6. Step 6: Final answer
    x = 18,558.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.