Home / 19,670.56-27,144.80-11,716.32

Finding the Fourth Proportional to 19,670.56, 27,144.80 and 11,716.32

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Solution

The fourth proportional to 19,670.56, 27,144.80 and 11,716.32 is: 16,168.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.56 : 27,144.80 = 11,716.32 : x
  2. Step 2: Convert to fraction form
    19,670.56/27,144.80 = 11,716.32/x
  3. Step 3: Cross multiply
    19,670.56x = 27,144.80 × 11,716.32
  4. Step 4: Simplify right side
    19,670.56x = 318,037,163.14
  5. Step 5: Solve for x
    x = 318,037,163.14/19,670.56
  6. Step 6: Final answer
    x = 16,168.18

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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.