Home / 12,222.05-18,329.40-6,375.47

Finding the Fourth Proportional to 12,222.05, 18,329.40 and 6,375.47

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Solution

The fourth proportional to 12,222.05, 18,329.40 and 6,375.47 is: 9,561.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.05 : 18,329.40 = 6,375.47 : x
  2. Step 2: Convert to fraction form
    12,222.05/18,329.40 = 6,375.47/x
  3. Step 3: Cross multiply
    12,222.05x = 18,329.40 × 6,375.47
  4. Step 4: Simplify right side
    12,222.05x = 116,858,448.17
  5. Step 5: Solve for x
    x = 116,858,448.17/12,222.05
  6. Step 6: Final answer
    x = 9,561.28

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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.