Home / 8,138.07-12,207.48-3,457.41

Finding the Fourth Proportional to 8,138.07, 12,207.48 and 3,457.41

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Solution

The fourth proportional to 8,138.07, 12,207.48 and 3,457.41 is: 5,186.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.07 : 12,207.48 = 3,457.41 : x
  2. Step 2: Convert to fraction form
    8,138.07/12,207.48 = 3,457.41/x
  3. Step 3: Cross multiply
    8,138.07x = 12,207.48 × 3,457.41
  4. Step 4: Simplify right side
    8,138.07x = 42,206,263.43
  5. Step 5: Solve for x
    x = 42,206,263.43/8,138.07
  6. Step 6: Final answer
    x = 5,186.27

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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.