Home / 12,579.22-18,867.67-4,258.28

Finding the Fourth Proportional to 12,579.22, 18,867.67 and 4,258.28

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Solution

The fourth proportional to 12,579.22, 18,867.67 and 4,258.28 is: 6,387.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.22 : 18,867.67 = 4,258.28 : x
  2. Step 2: Convert to fraction form
    12,579.22/18,867.67 = 4,258.28/x
  3. Step 3: Cross multiply
    12,579.22x = 18,867.67 × 4,258.28
  4. Step 4: Simplify right side
    12,579.22x = 80,343,858.33
  5. Step 5: Solve for x
    x = 80,343,858.33/12,579.22
  6. Step 6: Final answer
    x = 6,387.03

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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.