Home / 13,839.03-20,749.86-5,520.24

Finding the Fourth Proportional to 13,839.03, 20,749.86 and 5,520.24

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Solution

The fourth proportional to 13,839.03, 20,749.86 and 5,520.24 is: 8,276.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.03 : 20,749.86 = 5,520.24 : x
  2. Step 2: Convert to fraction form
    13,839.03/20,749.86 = 5,520.24/x
  3. Step 3: Cross multiply
    13,839.03x = 20,749.86 × 5,520.24
  4. Step 4: Simplify right side
    13,839.03x = 114,544,207.17
  5. Step 5: Solve for x
    x = 114,544,207.17/13,839.03
  6. Step 6: Final answer
    x = 8,276.90

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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.