Home / 13,886.88-19,163.40-8,296.80

Finding the Fourth Proportional to 13,886.88, 19,163.40 and 8,296.80

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Solution

The fourth proportional to 13,886.88, 19,163.40 and 8,296.80 is: 11,449.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.88 : 19,163.40 = 8,296.80 : x
  2. Step 2: Convert to fraction form
    13,886.88/19,163.40 = 8,296.80/x
  3. Step 3: Cross multiply
    13,886.88x = 19,163.40 × 8,296.80
  4. Step 4: Simplify right side
    13,886.88x = 158,994,897.12
  5. Step 5: Solve for x
    x = 158,994,897.12/13,886.88
  6. Step 6: Final answer
    x = 11,449.29

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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.