Home / 19,644.75-27,109.89-11,261.25

Finding the Fourth Proportional to 19,644.75, 27,109.89 and 11,261.25

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Solution

The fourth proportional to 19,644.75, 27,109.89 and 11,261.25 is: 15,540.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,644.75 : 27,109.89 = 11,261.25 : x
  2. Step 2: Convert to fraction form
    19,644.75/27,109.89 = 11,261.25/x
  3. Step 3: Cross multiply
    19,644.75x = 27,109.89 × 11,261.25
  4. Step 4: Simplify right side
    19,644.75x = 305,291,248.76
  5. Step 5: Solve for x
    x = 305,291,248.76/19,644.75
  6. Step 6: Final answer
    x = 15,540.60

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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.