Home / 7,913.28-11,867.32-2,914.50

Finding the Fourth Proportional to 7,913.28, 11,867.32 and 2,914.50

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Solution

The fourth proportional to 7,913.28, 11,867.32 and 2,914.50 is: 4,370.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.28 : 11,867.32 = 2,914.50 : x
  2. Step 2: Convert to fraction form
    7,913.28/11,867.32 = 2,914.50/x
  3. Step 3: Cross multiply
    7,913.28x = 11,867.32 × 2,914.50
  4. Step 4: Simplify right side
    7,913.28x = 34,587,304.14
  5. Step 5: Solve for x
    x = 34,587,304.14/7,913.28
  6. Step 6: Final answer
    x = 4,370.79

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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.