Home / 7,911.74-11,868.66-2,913.44

Finding the Fourth Proportional to 7,911.74, 11,868.66 and 2,913.44

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Solution

The fourth proportional to 7,911.74, 11,868.66 and 2,913.44 is: 4,370.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.74 : 11,868.66 = 2,913.44 : x
  2. Step 2: Convert to fraction form
    7,911.74/11,868.66 = 2,913.44/x
  3. Step 3: Cross multiply
    7,911.74x = 11,868.66 × 2,913.44
  4. Step 4: Simplify right side
    7,911.74x = 34,578,569.45
  5. Step 5: Solve for x
    x = 34,578,569.45/7,911.74
  6. Step 6: Final answer
    x = 4,370.54

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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.