Home / 11,475.87-17,172.75-8,993.64

Finding the Fourth Proportional to 11,475.87, 17,172.75 and 8,993.64

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Solution

The fourth proportional to 11,475.87, 17,172.75 and 8,993.64 is: 13,458.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,475.87 : 17,172.75 = 8,993.64 : x
  2. Step 2: Convert to fraction form
    11,475.87/17,172.75 = 8,993.64/x
  3. Step 3: Cross multiply
    11,475.87x = 17,172.75 × 8,993.64
  4. Step 4: Simplify right side
    11,475.87x = 154,445,531.31
  5. Step 5: Solve for x
    x = 154,445,531.31/11,475.87
  6. Step 6: Final answer
    x = 13,458.29

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1.5x scale

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.