Home / 13,556.89-20,337.36-4,197.75

Finding the Fourth Proportional to 13,556.89, 20,337.36 and 4,197.75

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Solution

The fourth proportional to 13,556.89, 20,337.36 and 4,197.75 is: 6,297.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.89 : 20,337.36 = 4,197.75 : x
  2. Step 2: Convert to fraction form
    13,556.89/20,337.36 = 4,197.75/x
  3. Step 3: Cross multiply
    13,556.89x = 20,337.36 × 4,197.75
  4. Step 4: Simplify right side
    13,556.89x = 85,371,152.94
  5. Step 5: Solve for x
    x = 85,371,152.94/13,556.89
  6. Step 6: Final answer
    x = 6,297.25

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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.