Home / 19,661.31-27,132.56-11,277.75

Finding the Fourth Proportional to 19,661.31, 27,132.56 and 11,277.75

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Solution

The fourth proportional to 19,661.31, 27,132.56 and 11,277.75 is: 15,563.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.31 : 27,132.56 = 11,277.75 : x
  2. Step 2: Convert to fraction form
    19,661.31/27,132.56 = 11,277.75/x
  3. Step 3: Cross multiply
    19,661.31x = 27,132.56 × 11,277.75
  4. Step 4: Simplify right side
    19,661.31x = 305,994,172.15
  5. Step 5: Solve for x
    x = 305,994,172.15/19,661.31
  6. Step 6: Final answer
    x = 15,563.26

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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.