Home / 15,273.05-21,076.80-8,558.73

Finding the Fourth Proportional to 15,273.05, 21,076.80 and 8,558.73

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Solution

The fourth proportional to 15,273.05, 21,076.80 and 8,558.73 is: 11,811.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,273.05 : 21,076.80 = 8,558.73 : x
  2. Step 2: Convert to fraction form
    15,273.05/21,076.80 = 8,558.73/x
  3. Step 3: Cross multiply
    15,273.05x = 21,076.80 × 8,558.73
  4. Step 4: Simplify right side
    15,273.05x = 180,390,640.46
  5. Step 5: Solve for x
    x = 180,390,640.46/15,273.05
  6. Step 6: Final answer
    x = 11,811.05

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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.