Home / 12,398.58-18,600.66-4,079.44

Finding the Fourth Proportional to 12,398.58, 18,600.66 and 4,079.44

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Solution

The fourth proportional to 12,398.58, 18,600.66 and 4,079.44 is: 6,120.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398.58 : 18,600.66 = 4,079.44 : x
  2. Step 2: Convert to fraction form
    12,398.58/18,600.66 = 4,079.44/x
  3. Step 3: Cross multiply
    12,398.58x = 18,600.66 × 4,079.44
  4. Step 4: Simplify right side
    12,398.58x = 75,880,258.84
  5. Step 5: Solve for x
    x = 75,880,258.84/12,398.58
  6. Step 6: Final answer
    x = 6,120.08

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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.