Home / 13,579.56-18,738.78-8,273.52

Finding the Fourth Proportional to 13,579.56, 18,738.78 and 8,273.52

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Solution

The fourth proportional to 13,579.56, 18,738.78 and 8,273.52 is: 11,416.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.56 : 18,738.78 = 8,273.52 : x
  2. Step 2: Convert to fraction form
    13,579.56/18,738.78 = 8,273.52/x
  3. Step 3: Cross multiply
    13,579.56x = 18,738.78 × 8,273.52
  4. Step 4: Simplify right side
    13,579.56x = 155,035,671.11
  5. Step 5: Solve for x
    x = 155,035,671.11/13,579.56
  6. Step 6: Final answer
    x = 11,416.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.