Home / 9,613.75-13,266.98-5,197.75

Finding the Fourth Proportional to 9,613.75, 13,266.98 and 5,197.75

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Solution

The fourth proportional to 9,613.75, 13,266.98 and 5,197.75 is: 7,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,613.75 : 13,266.98 = 5,197.75 : x
  2. Step 2: Convert to fraction form
    9,613.75/13,266.98 = 5,197.75/x
  3. Step 3: Cross multiply
    9,613.75x = 13,266.98 × 5,197.75
  4. Step 4: Simplify right side
    9,613.75x = 68,958,419.31
  5. Step 5: Solve for x
    x = 68,958,419.31/9,613.75
  6. Step 6: Final answer
    x = 7,172.90

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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.