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Finding the Fourth Proportional to 12,874.78, 19,313.70 and 4,553.08

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Solution

The fourth proportional to 12,874.78, 19,313.70 and 4,553.08 is: 6,830.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,874.78 : 19,313.70 = 4,553.08 : x
  2. Step 2: Convert to fraction form
    12,874.78/19,313.70 = 4,553.08/x
  3. Step 3: Cross multiply
    12,874.78x = 19,313.70 × 4,553.08
  4. Step 4: Simplify right side
    12,874.78x = 87,936,821.20
  5. Step 5: Solve for x
    x = 87,936,821.20/12,874.78
  6. Step 6: Final answer
    x = 6,830.16

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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.