Home / 13,536.78-20,255.24-8,203.03

Finding the Fourth Proportional to 13,536.78, 20,255.24 and 8,203.03

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Solution

The fourth proportional to 13,536.78, 20,255.24 and 8,203.03 is: 12,274.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.78 : 20,255.24 = 8,203.03 : x
  2. Step 2: Convert to fraction form
    13,536.78/20,255.24 = 8,203.03/x
  3. Step 3: Cross multiply
    13,536.78x = 20,255.24 × 8,203.03
  4. Step 4: Simplify right side
    13,536.78x = 166,154,341.38
  5. Step 5: Solve for x
    x = 166,154,341.38/13,536.78
  6. Step 6: Final answer
    x = 12,274.29

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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.