Home / 12,270.44-18,405.96-4,479.26

Finding the Fourth Proportional to 12,270.44, 18,405.96 and 4,479.26

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Solution

The fourth proportional to 12,270.44, 18,405.96 and 4,479.26 is: 6,719.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.44 : 18,405.96 = 4,479.26 : x
  2. Step 2: Convert to fraction form
    12,270.44/18,405.96 = 4,479.26/x
  3. Step 3: Cross multiply
    12,270.44x = 18,405.96 × 4,479.26
  4. Step 4: Simplify right side
    12,270.44x = 82,445,080.39
  5. Step 5: Solve for x
    x = 82,445,080.39/12,270.44
  6. Step 6: Final answer
    x = 6,719.00

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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.