Home / 12,723.84-19,087.58-3,959.64

Finding the Fourth Proportional to 12,723.84, 19,087.58 and 3,959.64

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Solution

The fourth proportional to 12,723.84, 19,087.58 and 3,959.64 is: 5,940.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,723.84 : 19,087.58 = 3,959.64 : x
  2. Step 2: Convert to fraction form
    12,723.84/19,087.58 = 3,959.64/x
  3. Step 3: Cross multiply
    12,723.84x = 19,087.58 × 3,959.64
  4. Step 4: Simplify right side
    12,723.84x = 75,579,955.17
  5. Step 5: Solve for x
    x = 75,579,955.17/12,723.84
  6. Step 6: Final answer
    x = 5,940.03

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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.