Home / 13,455.85-20,182.20-3,595.90

Finding the Fourth Proportional to 13,455.85, 20,182.20 and 3,595.90

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Solution

The fourth proportional to 13,455.85, 20,182.20 and 3,595.90 is: 5,393.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.85 : 20,182.20 = 3,595.90 : x
  2. Step 2: Convert to fraction form
    13,455.85/20,182.20 = 3,595.90/x
  3. Step 3: Cross multiply
    13,455.85x = 20,182.20 × 3,595.90
  4. Step 4: Simplify right side
    13,455.85x = 72,573,172.98
  5. Step 5: Solve for x
    x = 72,573,172.98/13,455.85
  6. Step 6: Final answer
    x = 5,393.43

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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.