Home / 12,611.10-17,365.77-12,331.41

Finding the Fourth Proportional to 12,611.10, 17,365.77 and 12,331.41

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Solution

The fourth proportional to 12,611.10, 17,365.77 and 12,331.41 is: 16,980.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611.10 : 17,365.77 = 12,331.41 : x
  2. Step 2: Convert to fraction form
    12,611.10/17,365.77 = 12,331.41/x
  3. Step 3: Cross multiply
    12,611.10x = 17,365.77 × 12,331.41
  4. Step 4: Simplify right side
    12,611.10x = 214,144,429.84
  5. Step 5: Solve for x
    x = 214,144,429.84/12,611.10
  6. Step 6: Final answer
    x = 16,980.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.