Home / 13,185.87-18,204.99-11,767.13

Finding the Fourth Proportional to 13,185.87, 18,204.99 and 11,767.13

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Solution

The fourth proportional to 13,185.87, 18,204.99 and 11,767.13 is: 16,246.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.87 : 18,204.99 = 11,767.13 : x
  2. Step 2: Convert to fraction form
    13,185.87/18,204.99 = 11,767.13/x
  3. Step 3: Cross multiply
    13,185.87x = 18,204.99 × 11,767.13
  4. Step 4: Simplify right side
    13,185.87x = 214,220,392.95
  5. Step 5: Solve for x
    x = 214,220,392.95/13,185.87
  6. Step 6: Final answer
    x = 16,246.21

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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.