Home / 13,288.25-19,932.40-12,476.33

Finding the Fourth Proportional to 13,288.25, 19,932.40 and 12,476.33

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Solution

The fourth proportional to 13,288.25, 19,932.40 and 12,476.33 is: 18,714.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.25 : 19,932.40 = 12,476.33 : x
  2. Step 2: Convert to fraction form
    13,288.25/19,932.40 = 12,476.33/x
  3. Step 3: Cross multiply
    13,288.25x = 19,932.40 × 12,476.33
  4. Step 4: Simplify right side
    13,288.25x = 248,683,197.83
  5. Step 5: Solve for x
    x = 248,683,197.83/13,288.25
  6. Step 6: Final answer
    x = 18,714.52

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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.