Home / 12,017.79-18,028.63-3,695.80

Finding the Fourth Proportional to 12,017.79, 18,028.63 and 3,695.80

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Solution

The fourth proportional to 12,017.79, 18,028.63 and 3,695.80 is: 5,544.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,017.79 : 18,028.63 = 3,695.80 : x
  2. Step 2: Convert to fraction form
    12,017.79/18,028.63 = 3,695.80/x
  3. Step 3: Cross multiply
    12,017.79x = 18,028.63 × 3,695.80
  4. Step 4: Simplify right side
    12,017.79x = 66,630,234.02
  5. Step 5: Solve for x
    x = 66,630,234.02/12,017.79
  6. Step 6: Final answer
    x = 5,544.30

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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.