Home / 19,783.97-27,302.61-11,287.47

Finding the Fourth Proportional to 19,783.97, 27,302.61 and 11,287.47

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Solution

The fourth proportional to 19,783.97, 27,302.61 and 11,287.47 is: 15,577.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.97 : 27,302.61 = 11,287.47 : x
  2. Step 2: Convert to fraction form
    19,783.97/27,302.61 = 11,287.47/x
  3. Step 3: Cross multiply
    19,783.97x = 27,302.61 × 11,287.47
  4. Step 4: Simplify right side
    19,783.97x = 308,177,391.30
  5. Step 5: Solve for x
    x = 308,177,391.30/19,783.97
  6. Step 6: Final answer
    x = 15,577.13

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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.