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Finding the Fourth Proportional to 9,303.90, 13,958.22 and 2,640.42

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Solution

The fourth proportional to 9,303.90, 13,958.22 and 2,640.42 is: 3,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,303.90 : 13,958.22 = 2,640.42 : x
  2. Step 2: Convert to fraction form
    9,303.90/13,958.22 = 2,640.42/x
  3. Step 3: Cross multiply
    9,303.90x = 13,958.22 × 2,640.42
  4. Step 4: Simplify right side
    9,303.90x = 36,855,563.25
  5. Step 5: Solve for x
    x = 36,855,563.25/9,303.90
  6. Step 6: Final answer
    x = 3,961.30

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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.