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Finding the Fourth Proportional to 8,452.80, 11,665.62 and 4,868.28

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Solution

The fourth proportional to 8,452.80, 11,665.62 and 4,868.28 is: 6,718.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,452.80 : 11,665.62 = 4,868.28 : x
  2. Step 2: Convert to fraction form
    8,452.80/11,665.62 = 4,868.28/x
  3. Step 3: Cross multiply
    8,452.80x = 11,665.62 × 4,868.28
  4. Step 4: Simplify right side
    8,452.80x = 56,791,504.53
  5. Step 5: Solve for x
    x = 56,791,504.53/8,452.80
  6. Step 6: Final answer
    x = 6,718.66

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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.