Home / 13,402.56-20,103.91-5,503.03

Finding the Fourth Proportional to 13,402.56, 20,103.91 and 5,503.03

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Solution

The fourth proportional to 13,402.56, 20,103.91 and 5,503.03 is: 8,254.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.56 : 20,103.91 = 5,503.03 : x
  2. Step 2: Convert to fraction form
    13,402.56/20,103.91 = 5,503.03/x
  3. Step 3: Cross multiply
    13,402.56x = 20,103.91 × 5,503.03
  4. Step 4: Simplify right side
    13,402.56x = 110,632,419.85
  5. Step 5: Solve for x
    x = 110,632,419.85/13,402.56
  6. Step 6: Final answer
    x = 8,254.57

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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.