Home / 18,131.66-27,208.27-9,811.51

Finding the Fourth Proportional to 18,131.66, 27,208.27 and 9,811.51

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Solution

The fourth proportional to 18,131.66, 27,208.27 and 9,811.51 is: 14,723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.66 : 27,208.27 = 9,811.51 : x
  2. Step 2: Convert to fraction form
    18,131.66/27,208.27 = 9,811.51/x
  3. Step 3: Cross multiply
    18,131.66x = 27,208.27 × 9,811.51
  4. Step 4: Simplify right side
    18,131.66x = 266,954,157.43
  5. Step 5: Solve for x
    x = 266,954,157.43/18,131.66
  6. Step 6: Final answer
    x = 14,723.10

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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.