Home / 19,611.50-27,064.91-11,115.27

Finding the Fourth Proportional to 19,611.50, 27,064.91 and 11,115.27

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Solution

The fourth proportional to 19,611.50, 27,064.91 and 11,115.27 is: 15,339.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.50 : 27,064.91 = 11,115.27 : x
  2. Step 2: Convert to fraction form
    19,611.50/27,064.91 = 11,115.27/x
  3. Step 3: Cross multiply
    19,611.50x = 27,064.91 × 11,115.27
  4. Step 4: Simplify right side
    19,611.50x = 300,833,726.60
  5. Step 5: Solve for x
    x = 300,833,726.60/19,611.50
  6. Step 6: Final answer
    x = 15,339.66

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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.