Home / 9,190.14-12,668.82-7,171.31

Finding the Fourth Proportional to 9,190.14, 12,668.82 and 7,171.31

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Solution

The fourth proportional to 9,190.14, 12,668.82 and 7,171.31 is: 9,885.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.14 : 12,668.82 = 7,171.31 : x
  2. Step 2: Convert to fraction form
    9,190.14/12,668.82 = 7,171.31/x
  3. Step 3: Cross multiply
    9,190.14x = 12,668.82 × 7,171.31
  4. Step 4: Simplify right side
    9,190.14x = 90,851,972.21
  5. Step 5: Solve for x
    x = 90,851,972.21/9,190.14
  6. Step 6: Final answer
    x = 9,885.81

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Half scale
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Double scale
Find fourth proportional to 9,191.14, 12,670.20 and 7,172.31
Similar ratio
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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.