Home / 13,745.04-20,630.52-7,175.76

Finding the Fourth Proportional to 13,745.04, 20,630.52 and 7,175.76

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Solution

The fourth proportional to 13,745.04, 20,630.52 and 7,175.76 is: 10,770.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.04 : 20,630.52 = 7,175.76 : x
  2. Step 2: Convert to fraction form
    13,745.04/20,630.52 = 7,175.76/x
  3. Step 3: Cross multiply
    13,745.04x = 20,630.52 × 7,175.76
  4. Step 4: Simplify right side
    13,745.04x = 148,039,660.20
  5. Step 5: Solve for x
    x = 148,039,660.20/13,745.04
  6. Step 6: Final answer
    x = 10,770.41

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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.