Home / 9,211.73-13,818.62-2,638.99

Finding the Fourth Proportional to 9,211.73, 13,818.62 and 2,638.99

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Solution

The fourth proportional to 9,211.73, 13,818.62 and 2,638.99 is: 3,958.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.73 : 13,818.62 = 2,638.99 : x
  2. Step 2: Convert to fraction form
    9,211.73/13,818.62 = 2,638.99/x
  3. Step 3: Cross multiply
    9,211.73x = 13,818.62 × 2,638.99
  4. Step 4: Simplify right side
    9,211.73x = 36,467,152.25
  5. Step 5: Solve for x
    x = 36,467,152.25/9,211.73
  6. Step 6: Final answer
    x = 3,958.77

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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.