Home / 18,625.49-25,690.16-12,250.09

Finding the Fourth Proportional to 18,625.49, 25,690.16 and 12,250.09

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Solution

The fourth proportional to 18,625.49, 25,690.16 and 12,250.09 is: 16,896.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,625.49 : 25,690.16 = 12,250.09 : x
  2. Step 2: Convert to fraction form
    18,625.49/25,690.16 = 12,250.09/x
  3. Step 3: Cross multiply
    18,625.49x = 25,690.16 × 12,250.09
  4. Step 4: Simplify right side
    18,625.49x = 314,706,690.35
  5. Step 5: Solve for x
    x = 314,706,690.35/18,625.49
  6. Step 6: Final answer
    x = 16,896.56

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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.