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Finding the Fourth Proportional to 16,630.70, 24,946.05 and 12,912.80

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Solution

The fourth proportional to 16,630.70, 24,946.05 and 12,912.80 is: 19,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,630.70 : 24,946.05 = 12,912.80 : x
  2. Step 2: Convert to fraction form
    16,630.70/24,946.05 = 12,912.80/x
  3. Step 3: Cross multiply
    16,630.70x = 24,946.05 × 12,912.80
  4. Step 4: Simplify right side
    16,630.70x = 322,123,354.44
  5. Step 5: Solve for x
    x = 322,123,354.44/16,630.70
  6. Step 6: Final answer
    x = 19,369.20

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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.