Home / 13,218.69-19,828.04-3,358.02

Finding the Fourth Proportional to 13,218.69, 19,828.04 and 3,358.02

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Solution

The fourth proportional to 13,218.69, 19,828.04 and 3,358.02 is: 5,037.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.69 : 19,828.04 = 3,358.02 : x
  2. Step 2: Convert to fraction form
    13,218.69/19,828.04 = 3,358.02/x
  3. Step 3: Cross multiply
    13,218.69x = 19,828.04 × 3,358.02
  4. Step 4: Simplify right side
    13,218.69x = 66,582,938.09
  5. Step 5: Solve for x
    x = 66,582,938.09/13,218.69
  6. Step 6: Final answer
    x = 5,037.03

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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.