Home / 12,163.76-16,777.12-9,298.96

Finding the Fourth Proportional to 12,163.76, 16,777.12 and 9,298.96

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Solution

The fourth proportional to 12,163.76, 16,777.12 and 9,298.96 is: 12,825.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.76 : 16,777.12 = 9,298.96 : x
  2. Step 2: Convert to fraction form
    12,163.76/16,777.12 = 9,298.96/x
  3. Step 3: Cross multiply
    12,163.76x = 16,777.12 × 9,298.96
  4. Step 4: Simplify right side
    12,163.76x = 156,009,702.61
  5. Step 5: Solve for x
    x = 156,009,702.61/12,163.76
  6. Step 6: Final answer
    x = 12,825.78

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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.