Home / 12,511.23-17,347.08-11,919.39

Finding the Fourth Proportional to 12,511.23, 17,347.08 and 11,919.39

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Solution

The fourth proportional to 12,511.23, 17,347.08 and 11,919.39 is: 16,526.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.23 : 17,347.08 = 11,919.39 : x
  2. Step 2: Convert to fraction form
    12,511.23/17,347.08 = 11,919.39/x
  3. Step 3: Cross multiply
    12,511.23x = 17,347.08 × 11,919.39
  4. Step 4: Simplify right side
    12,511.23x = 206,766,611.88
  5. Step 5: Solve for x
    x = 206,766,611.88/12,511.23
  6. Step 6: Final answer
    x = 16,526.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.