Home / 13,556.68-20,331.96-6,886.44

Finding the Fourth Proportional to 13,556.68, 20,331.96 and 6,886.44

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Solution

The fourth proportional to 13,556.68, 20,331.96 and 6,886.44 is: 10,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.68 : 20,331.96 = 6,886.44 : x
  2. Step 2: Convert to fraction form
    13,556.68/20,331.96 = 6,886.44/x
  3. Step 3: Cross multiply
    13,556.68x = 20,331.96 × 6,886.44
  4. Step 4: Simplify right side
    13,556.68x = 140,014,822.62
  5. Step 5: Solve for x
    x = 140,014,822.62/13,556.68
  6. Step 6: Final answer
    x = 10,328.11

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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.