Home / 12,247.89-18,370.57-3,933.87

Finding the Fourth Proportional to 12,247.89, 18,370.57 and 3,933.87

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Solution

The fourth proportional to 12,247.89, 18,370.57 and 3,933.87 is: 5,900.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,247.89 : 18,370.57 = 3,933.87 : x
  2. Step 2: Convert to fraction form
    12,247.89/18,370.57 = 3,933.87/x
  3. Step 3: Cross multiply
    12,247.89x = 18,370.57 × 3,933.87
  4. Step 4: Simplify right side
    12,247.89x = 72,267,434.21
  5. Step 5: Solve for x
    x = 72,267,434.21/12,247.89
  6. Step 6: Final answer
    x = 5,900.40

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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.