Home / 8,423.37-12,638.33-3,491.75

Finding the Fourth Proportional to 8,423.37, 12,638.33 and 3,491.75

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Solution

The fourth proportional to 8,423.37, 12,638.33 and 3,491.75 is: 5,238.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.37 : 12,638.33 = 3,491.75 : x
  2. Step 2: Convert to fraction form
    8,423.37/12,638.33 = 3,491.75/x
  3. Step 3: Cross multiply
    8,423.37x = 12,638.33 × 3,491.75
  4. Step 4: Simplify right side
    8,423.37x = 44,129,888.78
  5. Step 5: Solve for x
    x = 44,129,888.78/8,423.37
  6. Step 6: Final answer
    x = 5,238.98

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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.