Home / 10,862.50-16,286.28-4,289.44

Finding the Fourth Proportional to 10,862.50, 16,286.28 and 4,289.44

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Solution

The fourth proportional to 10,862.50, 16,286.28 and 4,289.44 is: 6,431.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,862.50 : 16,286.28 = 4,289.44 : x
  2. Step 2: Convert to fraction form
    10,862.50/16,286.28 = 4,289.44/x
  3. Step 3: Cross multiply
    10,862.50x = 16,286.28 × 4,289.44
  4. Step 4: Simplify right side
    10,862.50x = 69,859,020.88
  5. Step 5: Solve for x
    x = 69,859,020.88/10,862.50
  6. Step 6: Final answer
    x = 6,431.21

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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.