Home / 13,579.44-18,748.80-8,800.80

Finding the Fourth Proportional to 13,579.44, 18,748.80 and 8,800.80

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Solution

The fourth proportional to 13,579.44, 18,748.80 and 8,800.80 is: 12,151.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.44 : 18,748.80 = 8,800.80 : x
  2. Step 2: Convert to fraction form
    13,579.44/18,748.80 = 8,800.80/x
  3. Step 3: Cross multiply
    13,579.44x = 18,748.80 × 8,800.80
  4. Step 4: Simplify right side
    13,579.44x = 165,004,439.04
  5. Step 5: Solve for x
    x = 165,004,439.04/13,579.44
  6. Step 6: Final answer
    x = 12,151.05

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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.