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Finding the Fourth Proportional to 8,484.98, 12,722.43 and 3,485.87

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Solution

The fourth proportional to 8,484.98, 12,722.43 and 3,485.87 is: 5,226.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484.98 : 12,722.43 = 3,485.87 : x
  2. Step 2: Convert to fraction form
    8,484.98/12,722.43 = 3,485.87/x
  3. Step 3: Cross multiply
    8,484.98x = 12,722.43 × 3,485.87
  4. Step 4: Simplify right side
    8,484.98x = 44,348,737.06
  5. Step 5: Solve for x
    x = 44,348,737.06/8,484.98
  6. Step 6: Final answer
    x = 5,226.73

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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.