Home / 11,778.50-17,669.38-3,457.35

Finding the Fourth Proportional to 11,778.50, 17,669.38 and 3,457.35

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Solution

The fourth proportional to 11,778.50, 17,669.38 and 3,457.35 is: 5,186.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.50 : 17,669.38 = 3,457.35 : x
  2. Step 2: Convert to fraction form
    11,778.50/17,669.38 = 3,457.35/x
  3. Step 3: Cross multiply
    11,778.50x = 17,669.38 × 3,457.35
  4. Step 4: Simplify right side
    11,778.50x = 61,089,230.94
  5. Step 5: Solve for x
    x = 61,089,230.94/11,778.50
  6. Step 6: Final answer
    x = 5,186.50

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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.