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Finding the Fourth Proportional to 34,807.90, 52,211.85 and 8,512.90

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Solution

The fourth proportional to 34,807.90, 52,211.85 and 8,512.90 is: 12,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,807.90 : 52,211.85 = 8,512.90 : x
  2. Step 2: Convert to fraction form
    34,807.90/52,211.85 = 8,512.90/x
  3. Step 3: Cross multiply
    34,807.90x = 52,211.85 × 8,512.90
  4. Step 4: Simplify right side
    34,807.90x = 444,474,257.87
  5. Step 5: Solve for x
    x = 444,474,257.87/34,807.90
  6. Step 6: Final answer
    x = 12,769.35

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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.