Home / 13,556.28-20,373.78-8,968.44

Finding the Fourth Proportional to 13,556.28, 20,373.78 and 8,968.44

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Solution

The fourth proportional to 13,556.28, 20,373.78 and 8,968.44 is: 13,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.28 : 20,373.78 = 8,968.44 : x
  2. Step 2: Convert to fraction form
    13,556.28/20,373.78 = 8,968.44/x
  3. Step 3: Cross multiply
    13,556.28x = 20,373.78 × 8,968.44
  4. Step 4: Simplify right side
    13,556.28x = 182,721,023.50
  5. Step 5: Solve for x
    x = 182,721,023.50/13,556.28
  6. Step 6: Final answer
    x = 13,478.70

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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.