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Finding the Fourth Proportional to 13,969.55, 20,963.54 and 6,576.12

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Solution

The fourth proportional to 13,969.55, 20,963.54 and 6,576.12 is: 9,868.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.55 : 20,963.54 = 6,576.12 : x
  2. Step 2: Convert to fraction form
    13,969.55/20,963.54 = 6,576.12/x
  3. Step 3: Cross multiply
    13,969.55x = 20,963.54 × 6,576.12
  4. Step 4: Simplify right side
    13,969.55x = 137,858,771.11
  5. Step 5: Solve for x
    x = 137,858,771.11/13,969.55
  6. Step 6: Final answer
    x = 9,868.52

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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.