Home / 11,975.54-17,972.68-8,303.64

Finding the Fourth Proportional to 11,975.54, 17,972.68 and 8,303.64

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Solution

The fourth proportional to 11,975.54, 17,972.68 and 8,303.64 is: 12,461.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.54 : 17,972.68 = 8,303.64 : x
  2. Step 2: Convert to fraction form
    11,975.54/17,972.68 = 8,303.64/x
  3. Step 3: Cross multiply
    11,975.54x = 17,972.68 × 8,303.64
  4. Step 4: Simplify right side
    11,975.54x = 149,238,664.56
  5. Step 5: Solve for x
    x = 149,238,664.56/11,975.54
  6. Step 6: Final answer
    x = 12,461.96

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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.