Home / 11,861.19-17,783.58-5,194.50

Finding the Fourth Proportional to 11,861.19, 17,783.58 and 5,194.50

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Solution

The fourth proportional to 11,861.19, 17,783.58 and 5,194.50 is: 7,788.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.19 : 17,783.58 = 5,194.50 : x
  2. Step 2: Convert to fraction form
    11,861.19/17,783.58 = 5,194.50/x
  3. Step 3: Cross multiply
    11,861.19x = 17,783.58 × 5,194.50
  4. Step 4: Simplify right side
    11,861.19x = 92,376,806.31
  5. Step 5: Solve for x
    x = 92,376,806.31/11,861.19
  6. Step 6: Final answer
    x = 7,788.16

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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.