Home / 12,157.05-18,222.39-6,225.80

Finding the Fourth Proportional to 12,157.05, 18,222.39 and 6,225.80

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Solution

The fourth proportional to 12,157.05, 18,222.39 and 6,225.80 is: 9,331.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.05 : 18,222.39 = 6,225.80 : x
  2. Step 2: Convert to fraction form
    12,157.05/18,222.39 = 6,225.80/x
  3. Step 3: Cross multiply
    12,157.05x = 18,222.39 × 6,225.80
  4. Step 4: Simplify right side
    12,157.05x = 113,448,955.66
  5. Step 5: Solve for x
    x = 113,448,955.66/12,157.05
  6. Step 6: Final answer
    x = 9,331.95

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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.