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Finding the Fourth Proportional to 9,245.50, 13,868.25 and 3,089.50

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Solution

The fourth proportional to 9,245.50, 13,868.25 and 3,089.50 is: 4,634.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,245.50 : 13,868.25 = 3,089.50 : x
  2. Step 2: Convert to fraction form
    9,245.50/13,868.25 = 3,089.50/x
  3. Step 3: Cross multiply
    9,245.50x = 13,868.25 × 3,089.50
  4. Step 4: Simplify right side
    9,245.50x = 42,845,958.38
  5. Step 5: Solve for x
    x = 42,845,958.38/9,245.50
  6. Step 6: Final answer
    x = 4,634.25

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Half scale
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Double scale
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Similar ratio
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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.