Home / 11,183.60-15,433.72-6,403.56

Finding the Fourth Proportional to 11,183.60, 15,433.72 and 6,403.56

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Solution

The fourth proportional to 11,183.60, 15,433.72 and 6,403.56 is: 8,837.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,183.60 : 15,433.72 = 6,403.56 : x
  2. Step 2: Convert to fraction form
    11,183.60/15,433.72 = 6,403.56/x
  3. Step 3: Cross multiply
    11,183.60x = 15,433.72 × 6,403.56
  4. Step 4: Simplify right side
    11,183.60x = 98,830,678.16
  5. Step 5: Solve for x
    x = 98,830,678.16/11,183.60
  6. Step 6: Final answer
    x = 8,837.11

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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.