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Finding the Fourth Proportional to 8,348.56, 12,521.44 and 2,801.28

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Solution

The fourth proportional to 8,348.56, 12,521.44 and 2,801.28 is: 4,201.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.56 : 12,521.44 = 2,801.28 : x
  2. Step 2: Convert to fraction form
    8,348.56/12,521.44 = 2,801.28/x
  3. Step 3: Cross multiply
    8,348.56x = 12,521.44 × 2,801.28
  4. Step 4: Simplify right side
    8,348.56x = 35,076,059.44
  5. Step 5: Solve for x
    x = 35,076,059.44/8,348.56
  6. Step 6: Final answer
    x = 4,201.45

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1.5x scale

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.