Home / 7,850.72-11,778.12-2,586.53

Finding the Fourth Proportional to 7,850.72, 11,778.12 and 2,586.53

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Solution

The fourth proportional to 7,850.72, 11,778.12 and 2,586.53 is: 3,880.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.72 : 11,778.12 = 2,586.53 : x
  2. Step 2: Convert to fraction form
    7,850.72/11,778.12 = 2,586.53/x
  3. Step 3: Cross multiply
    7,850.72x = 11,778.12 × 2,586.53
  4. Step 4: Simplify right side
    7,850.72x = 30,464,401.83
  5. Step 5: Solve for x
    x = 30,464,401.83/7,850.72
  6. Step 6: Final answer
    x = 3,880.46

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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.