Home / 7,643.79-11,468.25-2,712.38

Finding the Fourth Proportional to 7,643.79, 11,468.25 and 2,712.38

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Solution

The fourth proportional to 7,643.79, 11,468.25 and 2,712.38 is: 4,069.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,643.79 : 11,468.25 = 2,712.38 : x
  2. Step 2: Convert to fraction form
    7,643.79/11,468.25 = 2,712.38/x
  3. Step 3: Cross multiply
    7,643.79x = 11,468.25 × 2,712.38
  4. Step 4: Simplify right side
    7,643.79x = 31,106,194.59
  5. Step 5: Solve for x
    x = 31,106,194.59/7,643.79
  6. Step 6: Final answer
    x = 4,069.47

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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.