Home / 9,172.64-13,749.62-3,618.36

Finding the Fourth Proportional to 9,172.64, 13,749.62 and 3,618.36

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Solution

The fourth proportional to 9,172.64, 13,749.62 and 3,618.36 is: 5,423.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.64 : 13,749.62 = 3,618.36 : x
  2. Step 2: Convert to fraction form
    9,172.64/13,749.62 = 3,618.36/x
  3. Step 3: Cross multiply
    9,172.64x = 13,749.62 × 3,618.36
  4. Step 4: Simplify right side
    9,172.64x = 49,751,075.02
  5. Step 5: Solve for x
    x = 49,751,075.02/9,172.64
  6. Step 6: Final answer
    x = 5,423.86

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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.