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Finding the Fourth Proportional to 8,508.89, 12,754.63 and 2,957.68

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Solution

The fourth proportional to 8,508.89, 12,754.63 and 2,957.68 is: 4,433.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.89 : 12,754.63 = 2,957.68 : x
  2. Step 2: Convert to fraction form
    8,508.89/12,754.63 = 2,957.68/x
  3. Step 3: Cross multiply
    8,508.89x = 12,754.63 × 2,957.68
  4. Step 4: Simplify right side
    8,508.89x = 37,724,133.70
  5. Step 5: Solve for x
    x = 37,724,133.70/8,508.89
  6. Step 6: Final answer
    x = 4,433.50

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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.