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Finding the Fourth Proportional to 12,893.34, 19,329.03 and 4,123.44

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Solution

The fourth proportional to 12,893.34, 19,329.03 and 4,123.44 is: 6,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,893.34 : 19,329.03 = 4,123.44 : x
  2. Step 2: Convert to fraction form
    12,893.34/19,329.03 = 4,123.44/x
  3. Step 3: Cross multiply
    12,893.34x = 19,329.03 × 4,123.44
  4. Step 4: Simplify right side
    12,893.34x = 79,702,095.46
  5. Step 5: Solve for x
    x = 79,702,095.46/12,893.34
  6. Step 6: Final answer
    x = 6,181.65

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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.