Home / 8,648.26-12,975.75-3,457.78

Finding the Fourth Proportional to 8,648.26, 12,975.75 and 3,457.78

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Solution

The fourth proportional to 8,648.26, 12,975.75 and 3,457.78 is: 5,188.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,648.26 : 12,975.75 = 3,457.78 : x
  2. Step 2: Convert to fraction form
    8,648.26/12,975.75 = 3,457.78/x
  3. Step 3: Cross multiply
    8,648.26x = 12,975.75 × 3,457.78
  4. Step 4: Simplify right side
    8,648.26x = 44,867,288.84
  5. Step 5: Solve for x
    x = 44,867,288.84/8,648.26
  6. Step 6: Final answer
    x = 5,188.01

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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.