Home / 13,455.07-20,185.68-4,096.42

Finding the Fourth Proportional to 13,455.07, 20,185.68 and 4,096.42

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Solution

The fourth proportional to 13,455.07, 20,185.68 and 4,096.42 is: 6,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.07 : 20,185.68 = 4,096.42 : x
  2. Step 2: Convert to fraction form
    13,455.07/20,185.68 = 4,096.42/x
  3. Step 3: Cross multiply
    13,455.07x = 20,185.68 × 4,096.42
  4. Step 4: Simplify right side
    13,455.07x = 82,688,901.86
  5. Step 5: Solve for x
    x = 82,688,901.86/13,455.07
  6. Step 6: Final answer
    x = 6,145.56

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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.