Home / 12,075.09-18,115.88-5,051.40

Finding the Fourth Proportional to 12,075.09, 18,115.88 and 5,051.40

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Solution

The fourth proportional to 12,075.09, 18,115.88 and 5,051.40 is: 7,578.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,075.09 : 18,115.88 = 5,051.40 : x
  2. Step 2: Convert to fraction form
    12,075.09/18,115.88 = 5,051.40/x
  3. Step 3: Cross multiply
    12,075.09x = 18,115.88 × 5,051.40
  4. Step 4: Simplify right side
    12,075.09x = 91,510,556.23
  5. Step 5: Solve for x
    x = 91,510,556.23/12,075.09
  6. Step 6: Final answer
    x = 7,578.46

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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.