Home / 13,841.76-20,749.85-5,519.75

Finding the Fourth Proportional to 13,841.76, 20,749.85 and 5,519.75

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Solution

The fourth proportional to 13,841.76, 20,749.85 and 5,519.75 is: 8,274.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.76 : 20,749.85 = 5,519.75 : x
  2. Step 2: Convert to fraction form
    13,841.76/20,749.85 = 5,519.75/x
  3. Step 3: Cross multiply
    13,841.76x = 20,749.85 × 5,519.75
  4. Step 4: Simplify right side
    13,841.76x = 114,533,956.94
  5. Step 5: Solve for x
    x = 114,533,956.94/13,841.76
  6. Step 6: Final answer
    x = 8,274.52

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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.