Home / 11,740.77-17,611.50-3,420.60

Finding the Fourth Proportional to 11,740.77, 17,611.50 and 3,420.60

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Solution

The fourth proportional to 11,740.77, 17,611.50 and 3,420.60 is: 5,131.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,740.77 : 17,611.50 = 3,420.60 : x
  2. Step 2: Convert to fraction form
    11,740.77/17,611.50 = 3,420.60/x
  3. Step 3: Cross multiply
    11,740.77x = 17,611.50 × 3,420.60
  4. Step 4: Simplify right side
    11,740.77x = 60,241,982.66
  5. Step 5: Solve for x
    x = 60,241,982.66/11,740.77
  6. Step 6: Final answer
    x = 5,131.01

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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.