Home / 13,322.48-19,986.35-11,146.41

Finding the Fourth Proportional to 13,322.48, 19,986.35 and 11,146.41

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Solution

The fourth proportional to 13,322.48, 19,986.35 and 11,146.41 is: 16,721.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.48 : 19,986.35 = 11,146.41 : x
  2. Step 2: Convert to fraction form
    13,322.48/19,986.35 = 11,146.41/x
  3. Step 3: Cross multiply
    13,322.48x = 19,986.35 × 11,146.41
  4. Step 4: Simplify right side
    13,322.48x = 222,775,995.77
  5. Step 5: Solve for x
    x = 222,775,995.77/13,322.48
  6. Step 6: Final answer
    x = 16,721.82

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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.