Home / 7,821.84-11,730.32-2,626.52

Finding the Fourth Proportional to 7,821.84, 11,730.32 and 2,626.52

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Solution

The fourth proportional to 7,821.84, 11,730.32 and 2,626.52 is: 3,938.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.84 : 11,730.32 = 2,626.52 : x
  2. Step 2: Convert to fraction form
    7,821.84/11,730.32 = 2,626.52/x
  3. Step 3: Cross multiply
    7,821.84x = 11,730.32 × 2,626.52
  4. Step 4: Simplify right side
    7,821.84x = 30,809,920.09
  5. Step 5: Solve for x
    x = 30,809,920.09/7,821.84
  6. Step 6: Final answer
    x = 3,938.96

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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.