Home / 19,970.97-27,560.09-11,018.80

Finding the Fourth Proportional to 19,970.97, 27,560.09 and 11,018.80

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Solution

The fourth proportional to 19,970.97, 27,560.09 and 11,018.80 is: 15,206.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,970.97 : 27,560.09 = 11,018.80 : x
  2. Step 2: Convert to fraction form
    19,970.97/27,560.09 = 11,018.80/x
  3. Step 3: Cross multiply
    19,970.97x = 27,560.09 × 11,018.80
  4. Step 4: Simplify right side
    19,970.97x = 303,678,987.94
  5. Step 5: Solve for x
    x = 303,678,987.94/19,970.97
  6. Step 6: Final answer
    x = 15,206.02

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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.