Home / 13,650.39-20,475.84-4,290.24

Finding the Fourth Proportional to 13,650.39, 20,475.84 and 4,290.24

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Solution

The fourth proportional to 13,650.39, 20,475.84 and 4,290.24 is: 6,435.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.39 : 20,475.84 = 4,290.24 : x
  2. Step 2: Convert to fraction form
    13,650.39/20,475.84 = 4,290.24/x
  3. Step 3: Cross multiply
    13,650.39x = 20,475.84 × 4,290.24
  4. Step 4: Simplify right side
    13,650.39x = 87,846,267.80
  5. Step 5: Solve for x
    x = 87,846,267.80/13,650.39
  6. Step 6: Final answer
    x = 6,435.44

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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.