Home / 12,405.72-18,608.58-6,173.54

Finding the Fourth Proportional to 12,405.72, 18,608.58 and 6,173.54

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Solution

The fourth proportional to 12,405.72, 18,608.58 and 6,173.54 is: 9,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405.72 : 18,608.58 = 6,173.54 : x
  2. Step 2: Convert to fraction form
    12,405.72/18,608.58 = 6,173.54/x
  3. Step 3: Cross multiply
    12,405.72x = 18,608.58 × 6,173.54
  4. Step 4: Simplify right side
    12,405.72x = 114,880,719.93
  5. Step 5: Solve for x
    x = 114,880,719.93/12,405.72
  6. Step 6: Final answer
    x = 9,260.30

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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.