Home / 12,270.06-18,405.18-3,505.08

Finding the Fourth Proportional to 12,270.06, 18,405.18 and 3,505.08

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Solution

The fourth proportional to 12,270.06, 18,405.18 and 3,505.08 is: 5,257.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.06 : 18,405.18 = 3,505.08 : x
  2. Step 2: Convert to fraction form
    12,270.06/18,405.18 = 3,505.08/x
  3. Step 3: Cross multiply
    12,270.06x = 18,405.18 × 3,505.08
  4. Step 4: Simplify right side
    12,270.06x = 64,511,628.31
  5. Step 5: Solve for x
    x = 64,511,628.31/12,270.06
  6. Step 6: Final answer
    x = 5,257.65

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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.