Home / 12,590.61-18,885.98-3,825.60

Finding the Fourth Proportional to 12,590.61, 18,885.98 and 3,825.60

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Solution

The fourth proportional to 12,590.61, 18,885.98 and 3,825.60 is: 5,738.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.61 : 18,885.98 = 3,825.60 : x
  2. Step 2: Convert to fraction form
    12,590.61/18,885.98 = 3,825.60/x
  3. Step 3: Cross multiply
    12,590.61x = 18,885.98 × 3,825.60
  4. Step 4: Simplify right side
    12,590.61x = 72,250,205.09
  5. Step 5: Solve for x
    x = 72,250,205.09/12,590.61
  6. Step 6: Final answer
    x = 5,738.42

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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.