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Finding the Fourth Proportional to 9,855.04, 14,788.44 and 3,930.88

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Solution

The fourth proportional to 9,855.04, 14,788.44 and 3,930.88 is: 5,898.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,855.04 : 14,788.44 = 3,930.88 : x
  2. Step 2: Convert to fraction form
    9,855.04/14,788.44 = 3,930.88/x
  3. Step 3: Cross multiply
    9,855.04x = 14,788.44 × 3,930.88
  4. Step 4: Simplify right side
    9,855.04x = 58,131,583.03
  5. Step 5: Solve for x
    x = 58,131,583.03/9,855.04
  6. Step 6: Final answer
    x = 5,898.67

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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.