Home / 12,939.96-19,393.38-11,267.22

Finding the Fourth Proportional to 12,939.96, 19,393.38 and 11,267.22

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Solution

The fourth proportional to 12,939.96, 19,393.38 and 11,267.22 is: 16,886.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939.96 : 19,393.38 = 11,267.22 : x
  2. Step 2: Convert to fraction form
    12,939.96/19,393.38 = 11,267.22/x
  3. Step 3: Cross multiply
    12,939.96x = 19,393.38 × 11,267.22
  4. Step 4: Simplify right side
    12,939.96x = 218,509,479.00
  5. Step 5: Solve for x
    x = 218,509,479.00/12,939.96
  6. Step 6: Final answer
    x = 16,886.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.