Home / 13,322.20-19,996.10-11,376.60

Finding the Fourth Proportional to 13,322.20, 19,996.10 and 11,376.60

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Solution

The fourth proportional to 13,322.20, 19,996.10 and 11,376.60 is: 17,075.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.20 : 19,996.10 = 11,376.60 : x
  2. Step 2: Convert to fraction form
    13,322.20/19,996.10 = 11,376.60/x
  3. Step 3: Cross multiply
    13,322.20x = 19,996.10 × 11,376.60
  4. Step 4: Simplify right side
    13,322.20x = 227,487,631.26
  5. Step 5: Solve for x
    x = 227,487,631.26/13,322.20
  6. Step 6: Final answer
    x = 17,075.83

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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.