Home / 13,530.85-20,299.01-4,765.84

Finding the Fourth Proportional to 13,530.85, 20,299.01 and 4,765.84

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Solution

The fourth proportional to 13,530.85, 20,299.01 and 4,765.84 is: 7,149.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.85 : 20,299.01 = 4,765.84 : x
  2. Step 2: Convert to fraction form
    13,530.85/20,299.01 = 4,765.84/x
  3. Step 3: Cross multiply
    13,530.85x = 20,299.01 × 4,765.84
  4. Step 4: Simplify right side
    13,530.85x = 96,741,759.24
  5. Step 5: Solve for x
    x = 96,741,759.24/13,530.85
  6. Step 6: Final answer
    x = 7,149.72

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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.