Home / 12,011.06-18,016.60-3,690.74

Finding the Fourth Proportional to 12,011.06, 18,016.60 and 3,690.74

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Solution

The fourth proportional to 12,011.06, 18,016.60 and 3,690.74 is: 5,536.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.06 : 18,016.60 = 3,690.74 : x
  2. Step 2: Convert to fraction form
    12,011.06/18,016.60 = 3,690.74/x
  3. Step 3: Cross multiply
    12,011.06x = 18,016.60 × 3,690.74
  4. Step 4: Simplify right side
    12,011.06x = 66,494,586.28
  5. Step 5: Solve for x
    x = 66,494,586.28/12,011.06
  6. Step 6: Final answer
    x = 5,536.11

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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.