Home / 15,076.48-20,798.76-9,772.60

Finding the Fourth Proportional to 15,076.48, 20,798.76 and 9,772.60

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Solution

The fourth proportional to 15,076.48, 20,798.76 and 9,772.60 is: 13,481.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,076.48 : 20,798.76 = 9,772.60 : x
  2. Step 2: Convert to fraction form
    15,076.48/20,798.76 = 9,772.60/x
  3. Step 3: Cross multiply
    15,076.48x = 20,798.76 × 9,772.60
  4. Step 4: Simplify right side
    15,076.48x = 203,257,961.98
  5. Step 5: Solve for x
    x = 203,257,961.98/15,076.48
  6. Step 6: Final answer
    x = 13,481.79

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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.