Home / 11,785.56-17,678.34-5,541.69

Finding the Fourth Proportional to 11,785.56, 17,678.34 and 5,541.69

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Solution

The fourth proportional to 11,785.56, 17,678.34 and 5,541.69 is: 8,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.56 : 17,678.34 = 5,541.69 : x
  2. Step 2: Convert to fraction form
    11,785.56/17,678.34 = 5,541.69/x
  3. Step 3: Cross multiply
    11,785.56x = 17,678.34 × 5,541.69
  4. Step 4: Simplify right side
    11,785.56x = 97,967,879.99
  5. Step 5: Solve for x
    x = 97,967,879.99/11,785.56
  6. Step 6: Final answer
    x = 8,312.54

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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.