Home / 19,671.56-27,147.31-11,173.16

Finding the Fourth Proportional to 19,671.56, 27,147.31 and 11,173.16

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Solution

The fourth proportional to 19,671.56, 27,147.31 and 11,173.16 is: 15,419.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,671.56 : 27,147.31 = 11,173.16 : x
  2. Step 2: Convert to fraction form
    19,671.56/27,147.31 = 11,173.16/x
  3. Step 3: Cross multiply
    19,671.56x = 27,147.31 × 11,173.16
  4. Step 4: Simplify right side
    19,671.56x = 303,321,278.13
  5. Step 5: Solve for x
    x = 303,321,278.13/19,671.56
  6. Step 6: Final answer
    x = 15,419.28

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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.