Home / 12,015.96-18,020.01-4,008.60

Finding the Fourth Proportional to 12,015.96, 18,020.01 and 4,008.60

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Solution

The fourth proportional to 12,015.96, 18,020.01 and 4,008.60 is: 6,011.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.96 : 18,020.01 = 4,008.60 : x
  2. Step 2: Convert to fraction form
    12,015.96/18,020.01 = 4,008.60/x
  3. Step 3: Cross multiply
    12,015.96x = 18,020.01 × 4,008.60
  4. Step 4: Simplify right side
    12,015.96x = 72,235,012.09
  5. Step 5: Solve for x
    x = 72,235,012.09/12,015.96
  6. Step 6: Final answer
    x = 6,011.59

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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.