Home / 11,132.24-16,688.43-4,211.60

Finding the Fourth Proportional to 11,132.24, 16,688.43 and 4,211.60

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Solution

The fourth proportional to 11,132.24, 16,688.43 and 4,211.60 is: 6,313.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,132.24 : 16,688.43 = 4,211.60 : x
  2. Step 2: Convert to fraction form
    11,132.24/16,688.43 = 4,211.60/x
  3. Step 3: Cross multiply
    11,132.24x = 16,688.43 × 4,211.60
  4. Step 4: Simplify right side
    11,132.24x = 70,284,908.35
  5. Step 5: Solve for x
    x = 70,284,908.35/11,132.24
  6. Step 6: Final answer
    x = 6,313.64

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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.