Home / 12,137.36-18,205.88-6,625.81

Finding the Fourth Proportional to 12,137.36, 18,205.88 and 6,625.81

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Solution

The fourth proportional to 12,137.36, 18,205.88 and 6,625.81 is: 9,938.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.36 : 18,205.88 = 6,625.81 : x
  2. Step 2: Convert to fraction form
    12,137.36/18,205.88 = 6,625.81/x
  3. Step 3: Cross multiply
    12,137.36x = 18,205.88 × 6,625.81
  4. Step 4: Simplify right side
    12,137.36x = 120,628,716.24
  5. Step 5: Solve for x
    x = 120,628,716.24/12,137.36
  6. Step 6: Final answer
    x = 9,938.63

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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.