Home / 11,183.52-15,433.28-6,147.78

Finding the Fourth Proportional to 11,183.52, 15,433.28 and 6,147.78

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Solution

The fourth proportional to 11,183.52, 15,433.28 and 6,147.78 is: 8,483.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,183.52 : 15,433.28 = 6,147.78 : x
  2. Step 2: Convert to fraction form
    11,183.52/15,433.28 = 6,147.78/x
  3. Step 3: Cross multiply
    11,183.52x = 15,433.28 × 6,147.78
  4. Step 4: Simplify right side
    11,183.52x = 94,880,376.32
  5. Step 5: Solve for x
    x = 94,880,376.32/11,183.52
  6. Step 6: Final answer
    x = 8,483.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.