Home / 18,690.84-25,769.97-11,965.41

Finding the Fourth Proportional to 18,690.84, 25,769.97 and 11,965.41

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Solution

The fourth proportional to 18,690.84, 25,769.97 and 11,965.41 is: 16,497.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.84 : 25,769.97 = 11,965.41 : x
  2. Step 2: Convert to fraction form
    18,690.84/25,769.97 = 11,965.41/x
  3. Step 3: Cross multiply
    18,690.84x = 25,769.97 × 11,965.41
  4. Step 4: Simplify right side
    18,690.84x = 308,348,256.74
  5. Step 5: Solve for x
    x = 308,348,256.74/18,690.84
  6. Step 6: Final answer
    x = 16,497.29

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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.