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Finding the Fourth Proportional to 9,478.44, 13,075.29 and 7,236.43

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Solution

The fourth proportional to 9,478.44, 13,075.29 and 7,236.43 is: 9,982.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,478.44 : 13,075.29 = 7,236.43 : x
  2. Step 2: Convert to fraction form
    9,478.44/13,075.29 = 7,236.43/x
  3. Step 3: Cross multiply
    9,478.44x = 13,075.29 × 7,236.43
  4. Step 4: Simplify right side
    9,478.44x = 94,618,388.13
  5. Step 5: Solve for x
    x = 94,618,388.13/9,478.44
  6. Step 6: Final answer
    x = 9,982.49

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