Home / 13,582.69-20,375.93-12,835.69

Finding the Fourth Proportional to 13,582.69, 20,375.93 and 12,835.69

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Solution

The fourth proportional to 13,582.69, 20,375.93 and 12,835.69 is: 19,255.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.69 : 20,375.93 = 12,835.69 : x
  2. Step 2: Convert to fraction form
    13,582.69/20,375.93 = 12,835.69/x
  3. Step 3: Cross multiply
    13,582.69x = 20,375.93 × 12,835.69
  4. Step 4: Simplify right side
    13,582.69x = 261,539,102.09
  5. Step 5: Solve for x
    x = 261,539,102.09/13,582.69
  6. Step 6: Final answer
    x = 19,255.33

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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.