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Finding the Fourth Proportional to 8,650.29, 12,974.83 and 4,940.90

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Solution

The fourth proportional to 8,650.29, 12,974.83 and 4,940.90 is: 7,411.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.29 : 12,974.83 = 4,940.90 : x
  2. Step 2: Convert to fraction form
    8,650.29/12,974.83 = 4,940.90/x
  3. Step 3: Cross multiply
    8,650.29x = 12,974.83 × 4,940.90
  4. Step 4: Simplify right side
    8,650.29x = 64,107,337.55
  5. Step 5: Solve for x
    x = 64,107,337.55/8,650.29
  6. Step 6: Final answer
    x = 7,411.00

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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.