Home / 13,273.68-19,905.78-4,387.38

Finding the Fourth Proportional to 13,273.68, 19,905.78 and 4,387.38

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Solution

The fourth proportional to 13,273.68, 19,905.78 and 4,387.38 is: 6,579.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,273.68 : 19,905.78 = 4,387.38 : x
  2. Step 2: Convert to fraction form
    13,273.68/19,905.78 = 4,387.38/x
  3. Step 3: Cross multiply
    13,273.68x = 19,905.78 × 4,387.38
  4. Step 4: Simplify right side
    13,273.68x = 87,334,221.06
  5. Step 5: Solve for x
    x = 87,334,221.06/13,273.68
  6. Step 6: Final answer
    x = 6,579.50

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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.