Home / 14,312.72-21,469.20-3,924.56

Finding the Fourth Proportional to 14,312.72, 21,469.20 and 3,924.56

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Solution

The fourth proportional to 14,312.72, 21,469.20 and 3,924.56 is: 5,886.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,312.72 : 21,469.20 = 3,924.56 : x
  2. Step 2: Convert to fraction form
    14,312.72/21,469.20 = 3,924.56/x
  3. Step 3: Cross multiply
    14,312.72x = 21,469.20 × 3,924.56
  4. Step 4: Simplify right side
    14,312.72x = 84,257,163.55
  5. Step 5: Solve for x
    x = 84,257,163.55/14,312.72
  6. Step 6: Final answer
    x = 5,886.87

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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.