Home / 14,388.62-21,570.14-5,621.54

Finding the Fourth Proportional to 14,388.62, 21,570.14 and 5,621.54

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Solution

The fourth proportional to 14,388.62, 21,570.14 and 5,621.54 is: 8,427.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.62 : 21,570.14 = 5,621.54 : x
  2. Step 2: Convert to fraction form
    14,388.62/21,570.14 = 5,621.54/x
  3. Step 3: Cross multiply
    14,388.62x = 21,570.14 × 5,621.54
  4. Step 4: Simplify right side
    14,388.62x = 121,257,404.82
  5. Step 5: Solve for x
    x = 121,257,404.82/14,388.62
  6. Step 6: Final answer
    x = 8,427.31

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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.