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Finding the Fourth Proportional to 9,920.87, 14,879.58 and 3,257.27

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Solution

The fourth proportional to 9,920.87, 14,879.58 and 3,257.27 is: 4,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920.87 : 14,879.58 = 3,257.27 : x
  2. Step 2: Convert to fraction form
    9,920.87/14,879.58 = 3,257.27/x
  3. Step 3: Cross multiply
    9,920.87x = 14,879.58 × 3,257.27
  4. Step 4: Simplify right side
    9,920.87x = 48,466,809.55
  5. Step 5: Solve for x
    x = 48,466,809.55/9,920.87
  6. Step 6: Final answer
    x = 4,885.34

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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.