Home / 15,273.28-21,076.02-8,557.96

Finding the Fourth Proportional to 15,273.28, 21,076.02 and 8,557.96

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Solution

The fourth proportional to 15,273.28, 21,076.02 and 8,557.96 is: 11,809.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,273.28 : 21,076.02 = 8,557.96 : x
  2. Step 2: Convert to fraction form
    15,273.28/21,076.02 = 8,557.96/x
  3. Step 3: Cross multiply
    15,273.28x = 21,076.02 × 8,557.96
  4. Step 4: Simplify right side
    15,273.28x = 180,367,736.12
  5. Step 5: Solve for x
    x = 180,367,736.12/15,273.28
  6. Step 6: Final answer
    x = 11,809.36

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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.