Home / 15,786.25-23,679.42-4,099.57

Finding the Fourth Proportional to 15,786.25, 23,679.42 and 4,099.57

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Solution

The fourth proportional to 15,786.25, 23,679.42 and 4,099.57 is: 6,149.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786.25 : 23,679.42 = 4,099.57 : x
  2. Step 2: Convert to fraction form
    15,786.25/23,679.42 = 4,099.57/x
  3. Step 3: Cross multiply
    15,786.25x = 23,679.42 × 4,099.57
  4. Step 4: Simplify right side
    15,786.25x = 97,075,439.85
  5. Step 5: Solve for x
    x = 97,075,439.85/15,786.25
  6. Step 6: Final answer
    x = 6,149.37

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1.5x scale

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.