Home / 13,273.59-19,911.47-3,785.79

Finding the Fourth Proportional to 13,273.59, 19,911.47 and 3,785.79

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Solution

The fourth proportional to 13,273.59, 19,911.47 and 3,785.79 is: 5,678.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,273.59 : 19,911.47 = 3,785.79 : x
  2. Step 2: Convert to fraction form
    13,273.59/19,911.47 = 3,785.79/x
  3. Step 3: Cross multiply
    13,273.59x = 19,911.47 × 3,785.79
  4. Step 4: Simplify right side
    13,273.59x = 75,380,625.08
  5. Step 5: Solve for x
    x = 75,380,625.08/13,273.59
  6. Step 6: Final answer
    x = 5,678.99

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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.