Home / 11,286.95-16,931.90-3,889.42

Finding the Fourth Proportional to 11,286.95, 16,931.90 and 3,889.42

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Solution

The fourth proportional to 11,286.95, 16,931.90 and 3,889.42 is: 5,834.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.95 : 16,931.90 = 3,889.42 : x
  2. Step 2: Convert to fraction form
    11,286.95/16,931.90 = 3,889.42/x
  3. Step 3: Cross multiply
    11,286.95x = 16,931.90 × 3,889.42
  4. Step 4: Simplify right side
    11,286.95x = 65,855,237.89
  5. Step 5: Solve for x
    x = 65,855,237.89/11,286.95
  6. Step 6: Final answer
    x = 5,834.64

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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.