Home / 11,183.91-15,434.55-7,400.55

Finding the Fourth Proportional to 11,183.91, 15,434.55 and 7,400.55

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Solution

The fourth proportional to 11,183.91, 15,434.55 and 7,400.55 is: 10,213.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,183.91 : 15,434.55 = 7,400.55 : x
  2. Step 2: Convert to fraction form
    11,183.91/15,434.55 = 7,400.55/x
  3. Step 3: Cross multiply
    11,183.91x = 15,434.55 × 7,400.55
  4. Step 4: Simplify right side
    11,183.91x = 114,224,159.00
  5. Step 5: Solve for x
    x = 114,224,159.00/11,183.91
  6. Step 6: Final answer
    x = 10,213.26

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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.