Home / 7,408.23-11,112.36-1,861.58

Finding the Fourth Proportional to 7,408.23, 11,112.36 and 1,861.58

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Solution

The fourth proportional to 7,408.23, 11,112.36 and 1,861.58 is: 2,792.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.23 : 11,112.36 = 1,861.58 : x
  2. Step 2: Convert to fraction form
    7,408.23/11,112.36 = 1,861.58/x
  3. Step 3: Cross multiply
    7,408.23x = 11,112.36 × 1,861.58
  4. Step 4: Simplify right side
    7,408.23x = 20,686,567.93
  5. Step 5: Solve for x
    x = 20,686,567.93/7,408.23
  6. Step 6: Final answer
    x = 2,792.38

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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.