Home / 10,145.87-15,218.63-3,907.24

Finding the Fourth Proportional to 10,145.87, 15,218.63 and 3,907.24

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Solution

The fourth proportional to 10,145.87, 15,218.63 and 3,907.24 is: 5,860.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.87 : 15,218.63 = 3,907.24 : x
  2. Step 2: Convert to fraction form
    10,145.87/15,218.63 = 3,907.24/x
  3. Step 3: Cross multiply
    10,145.87x = 15,218.63 × 3,907.24
  4. Step 4: Simplify right side
    10,145.87x = 59,462,796.95
  5. Step 5: Solve for x
    x = 59,462,796.95/10,145.87
  6. Step 6: Final answer
    x = 5,860.79

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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.