Home / 12,849.20-19,277.03-3,615.20

Finding the Fourth Proportional to 12,849.20, 19,277.03 and 3,615.20

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Solution

The fourth proportional to 12,849.20, 19,277.03 and 3,615.20 is: 5,423.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849.20 : 19,277.03 = 3,615.20 : x
  2. Step 2: Convert to fraction form
    12,849.20/19,277.03 = 3,615.20/x
  3. Step 3: Cross multiply
    12,849.20x = 19,277.03 × 3,615.20
  4. Step 4: Simplify right side
    12,849.20x = 69,690,318.86
  5. Step 5: Solve for x
    x = 69,690,318.86/12,849.20
  6. Step 6: Final answer
    x = 5,423.71

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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.