Home / 8,896.78-13,340.63-2,971.54

Finding the Fourth Proportional to 8,896.78, 13,340.63 and 2,971.54

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Solution

The fourth proportional to 8,896.78, 13,340.63 and 2,971.54 is: 4,455.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,896.78 : 13,340.63 = 2,971.54 : x
  2. Step 2: Convert to fraction form
    8,896.78/13,340.63 = 2,971.54/x
  3. Step 3: Cross multiply
    8,896.78x = 13,340.63 × 2,971.54
  4. Step 4: Simplify right side
    8,896.78x = 39,642,148.97
  5. Step 5: Solve for x
    x = 39,642,148.97/8,896.78
  6. Step 6: Final answer
    x = 4,455.79

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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.