Home / 15,860.61-21,889.44-11,077.56

Finding the Fourth Proportional to 15,860.61, 21,889.44 and 11,077.56

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Solution

The fourth proportional to 15,860.61, 21,889.44 and 11,077.56 is: 15,288.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,860.61 : 21,889.44 = 11,077.56 : x
  2. Step 2: Convert to fraction form
    15,860.61/21,889.44 = 11,077.56/x
  3. Step 3: Cross multiply
    15,860.61x = 21,889.44 × 11,077.56
  4. Step 4: Simplify right side
    15,860.61x = 242,481,584.97
  5. Step 5: Solve for x
    x = 242,481,584.97/15,860.61
  6. Step 6: Final answer
    x = 15,288.29

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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.