Home / 12,208.73-18,312.84-3,889.32

Finding the Fourth Proportional to 12,208.73, 18,312.84 and 3,889.32

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Solution

The fourth proportional to 12,208.73, 18,312.84 and 3,889.32 is: 5,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.73 : 18,312.84 = 3,889.32 : x
  2. Step 2: Convert to fraction form
    12,208.73/18,312.84 = 3,889.32/x
  3. Step 3: Cross multiply
    12,208.73x = 18,312.84 × 3,889.32
  4. Step 4: Simplify right side
    12,208.73x = 71,224,494.87
  5. Step 5: Solve for x
    x = 71,224,494.87/12,208.73
  6. Step 6: Final answer
    x = 5,833.90

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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.