Home / 10,368.14-15,556.80-5,436.60

Finding the Fourth Proportional to 10,368.14, 15,556.80 and 5,436.60

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Solution

The fourth proportional to 10,368.14, 15,556.80 and 5,436.60 is: 8,157.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.14 : 15,556.80 = 5,436.60 : x
  2. Step 2: Convert to fraction form
    10,368.14/15,556.80 = 5,436.60/x
  3. Step 3: Cross multiply
    10,368.14x = 15,556.80 × 5,436.60
  4. Step 4: Simplify right side
    10,368.14x = 84,576,098.88
  5. Step 5: Solve for x
    x = 84,576,098.88/10,368.14
  6. Step 6: Final answer
    x = 8,157.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.