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Finding the Fourth Proportional to 8,480.54, 12,722.98 and 2,637.20

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Solution

The fourth proportional to 8,480.54, 12,722.98 and 2,637.20 is: 3,956.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.54 : 12,722.98 = 2,637.20 : x
  2. Step 2: Convert to fraction form
    8,480.54/12,722.98 = 2,637.20/x
  3. Step 3: Cross multiply
    8,480.54x = 12,722.98 × 2,637.20
  4. Step 4: Simplify right side
    8,480.54x = 33,553,042.86
  5. Step 5: Solve for x
    x = 33,553,042.86/8,480.54
  6. Step 6: Final answer
    x = 3,956.47

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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.