Home / 11,457.36-17,184.62-3,138.05

Finding the Fourth Proportional to 11,457.36, 17,184.62 and 3,138.05

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Solution

The fourth proportional to 11,457.36, 17,184.62 and 3,138.05 is: 4,706.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,457.36 : 17,184.62 = 3,138.05 : x
  2. Step 2: Convert to fraction form
    11,457.36/17,184.62 = 3,138.05/x
  3. Step 3: Cross multiply
    11,457.36x = 17,184.62 × 3,138.05
  4. Step 4: Simplify right side
    11,457.36x = 53,926,247.60
  5. Step 5: Solve for x
    x = 53,926,247.60/11,457.36
  6. Step 6: Final answer
    x = 4,706.69

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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.