Home / 12,137.54-16,749.80-7,102.73

Finding the Fourth Proportional to 12,137.54, 16,749.80 and 7,102.73

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Solution

The fourth proportional to 12,137.54, 16,749.80 and 7,102.73 is: 9,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.54 : 16,749.80 = 7,102.73 : x
  2. Step 2: Convert to fraction form
    12,137.54/16,749.80 = 7,102.73/x
  3. Step 3: Cross multiply
    12,137.54x = 16,749.80 × 7,102.73
  4. Step 4: Simplify right side
    12,137.54x = 118,969,240.96
  5. Step 5: Solve for x
    x = 118,969,240.96/12,137.54
  6. Step 6: Final answer
    x = 9,801.76

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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.