Home / 13,014.28-17,989.97-11,611.86

Finding the Fourth Proportional to 13,014.28, 17,989.97 and 11,611.86

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Solution

The fourth proportional to 13,014.28, 17,989.97 and 11,611.86 is: 16,051.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,014.28 : 17,989.97 = 11,611.86 : x
  2. Step 2: Convert to fraction form
    13,014.28/17,989.97 = 11,611.86/x
  3. Step 3: Cross multiply
    13,014.28x = 17,989.97 × 11,611.86
  4. Step 4: Simplify right side
    13,014.28x = 208,896,954.98
  5. Step 5: Solve for x
    x = 208,896,954.98/13,014.28
  6. Step 6: Final answer
    x = 16,051.37

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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.