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Finding the Fourth Proportional to 9,941.40, 13,716.81 and 8,354.07

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Solution

The fourth proportional to 9,941.40, 13,716.81 and 8,354.07 is: 11,526.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,941.40 : 13,716.81 = 8,354.07 : x
  2. Step 2: Convert to fraction form
    9,941.40/13,716.81 = 8,354.07/x
  3. Step 3: Cross multiply
    9,941.40x = 13,716.81 × 8,354.07
  4. Step 4: Simplify right side
    9,941.40x = 114,591,190.92
  5. Step 5: Solve for x
    x = 114,591,190.92/9,941.40
  6. Step 6: Final answer
    x = 11,526.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.