Home / 12,229.70-18,342.16-3,907.48

Finding the Fourth Proportional to 12,229.70, 18,342.16 and 3,907.48

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Solution

The fourth proportional to 12,229.70, 18,342.16 and 3,907.48 is: 5,860.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229.70 : 18,342.16 = 3,907.48 : x
  2. Step 2: Convert to fraction form
    12,229.70/18,342.16 = 3,907.48/x
  3. Step 3: Cross multiply
    12,229.70x = 18,342.16 × 3,907.48
  4. Step 4: Simplify right side
    12,229.70x = 71,671,623.36
  5. Step 5: Solve for x
    x = 71,671,623.36/12,229.70
  6. Step 6: Final answer
    x = 5,860.46

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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.