Home / 10,075.07-15,112.59-2,679.54

Finding the Fourth Proportional to 10,075.07, 15,112.59 and 2,679.54

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Solution

The fourth proportional to 10,075.07, 15,112.59 and 2,679.54 is: 4,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,075.07 : 15,112.59 = 2,679.54 : x
  2. Step 2: Convert to fraction form
    10,075.07/15,112.59 = 2,679.54/x
  3. Step 3: Cross multiply
    10,075.07x = 15,112.59 × 2,679.54
  4. Step 4: Simplify right side
    10,075.07x = 40,494,737.08
  5. Step 5: Solve for x
    x = 40,494,737.08/10,075.07
  6. Step 6: Final answer
    x = 4,019.30

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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.