Home / 10,143.91-15,216.62-2,748.25

Finding the Fourth Proportional to 10,143.91, 15,216.62 and 2,748.25

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Solution

The fourth proportional to 10,143.91, 15,216.62 and 2,748.25 is: 4,122.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.91 : 15,216.62 = 2,748.25 : x
  2. Step 2: Convert to fraction form
    10,143.91/15,216.62 = 2,748.25/x
  3. Step 3: Cross multiply
    10,143.91x = 15,216.62 × 2,748.25
  4. Step 4: Simplify right side
    10,143.91x = 41,819,075.92
  5. Step 5: Solve for x
    x = 41,819,075.92/10,143.91
  6. Step 6: Final answer
    x = 4,122.58

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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.