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Finding the Fourth Proportional to 8,480.37, 12,718.27 and 3,549

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Solution

The fourth proportional to 8,480.37, 12,718.27 and 3,549 is: 5,322.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.37 : 12,718.27 = 3,549 : x
  2. Step 2: Convert to fraction form
    8,480.37/12,718.27 = 3,549/x
  3. Step 3: Cross multiply
    8,480.37x = 12,718.27 × 3,549
  4. Step 4: Simplify right side
    8,480.37x = 45,137,140.23
  5. Step 5: Solve for x
    x = 45,137,140.23/8,480.37
  6. Step 6: Final answer
    x = 5,322.54

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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.