Home / 12,721.58-19,084.46-3,954.45

Finding the Fourth Proportional to 12,721.58, 19,084.46 and 3,954.45

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Solution

The fourth proportional to 12,721.58, 19,084.46 and 3,954.45 is: 5,932.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.58 : 19,084.46 = 3,954.45 : x
  2. Step 2: Convert to fraction form
    12,721.58/19,084.46 = 3,954.45/x
  3. Step 3: Cross multiply
    12,721.58x = 19,084.46 × 3,954.45
  4. Step 4: Simplify right side
    12,721.58x = 75,468,455.86
  5. Step 5: Solve for x
    x = 75,468,455.86/12,721.58
  6. Step 6: Final answer
    x = 5,932.32

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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.