Home / 12,018.21-18,027.28-3,253.80

Finding the Fourth Proportional to 12,018.21, 18,027.28 and 3,253.80

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Solution

The fourth proportional to 12,018.21, 18,027.28 and 3,253.80 is: 4,880.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018.21 : 18,027.28 = 3,253.80 : x
  2. Step 2: Convert to fraction form
    12,018.21/18,027.28 = 3,253.80/x
  3. Step 3: Cross multiply
    12,018.21x = 18,027.28 × 3,253.80
  4. Step 4: Simplify right side
    12,018.21x = 58,657,163.66
  5. Step 5: Solve for x
    x = 58,657,163.66/12,018.21
  6. Step 6: Final answer
    x = 4,880.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.