Home / 12,270.16-18,408.18-3,950.96

Finding the Fourth Proportional to 12,270.16, 18,408.18 and 3,950.96

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Solution

The fourth proportional to 12,270.16, 18,408.18 and 3,950.96 is: 5,927.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.16 : 18,408.18 = 3,950.96 : x
  2. Step 2: Convert to fraction form
    12,270.16/18,408.18 = 3,950.96/x
  3. Step 3: Cross multiply
    12,270.16x = 18,408.18 × 3,950.96
  4. Step 4: Simplify right side
    12,270.16x = 72,729,871.06
  5. Step 5: Solve for x
    x = 72,729,871.06/12,270.16
  6. Step 6: Final answer
    x = 5,927.38

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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.