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Finding the Fourth Proportional to 8,452.78, 11,665.26 and 4,868.28

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Solution

The fourth proportional to 8,452.78, 11,665.26 and 4,868.28 is: 6,718.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,452.78 : 11,665.26 = 4,868.28 : x
  2. Step 2: Convert to fraction form
    8,452.78/11,665.26 = 4,868.28/x
  3. Step 3: Cross multiply
    8,452.78x = 11,665.26 × 4,868.28
  4. Step 4: Simplify right side
    8,452.78x = 56,789,751.95
  5. Step 5: Solve for x
    x = 56,789,751.95/8,452.78
  6. Step 6: Final answer
    x = 6,718.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.