Home / 11,639.23-17,458.88-4,243.68

Finding the Fourth Proportional to 11,639.23, 17,458.88 and 4,243.68

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Solution

The fourth proportional to 11,639.23, 17,458.88 and 4,243.68 is: 6,365.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.23 : 17,458.88 = 4,243.68 : x
  2. Step 2: Convert to fraction form
    11,639.23/17,458.88 = 4,243.68/x
  3. Step 3: Cross multiply
    11,639.23x = 17,458.88 × 4,243.68
  4. Step 4: Simplify right side
    11,639.23x = 74,089,899.88
  5. Step 5: Solve for x
    x = 74,089,899.88/11,639.23
  6. Step 6: Final answer
    x = 6,365.53

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1.5x scale

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.