Home / 13,284.19-19,921.42-5,488.75

Finding the Fourth Proportional to 13,284.19, 19,921.42 and 5,488.75

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Solution

The fourth proportional to 13,284.19, 19,921.42 and 5,488.75 is: 8,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.19 : 19,921.42 = 5,488.75 : x
  2. Step 2: Convert to fraction form
    13,284.19/19,921.42 = 5,488.75/x
  3. Step 3: Cross multiply
    13,284.19x = 19,921.42 × 5,488.75
  4. Step 4: Simplify right side
    13,284.19x = 109,343,694.03
  5. Step 5: Solve for x
    x = 109,343,694.03/13,284.19
  6. Step 6: Final answer
    x = 8,231.11

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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.