Home / 13,769.52-20,668.84-8,579.04

Finding the Fourth Proportional to 13,769.52, 20,668.84 and 8,579.04

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Solution

The fourth proportional to 13,769.52, 20,668.84 and 8,579.04 is: 12,877.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.52 : 20,668.84 = 8,579.04 : x
  2. Step 2: Convert to fraction form
    13,769.52/20,668.84 = 8,579.04/x
  3. Step 3: Cross multiply
    13,769.52x = 20,668.84 × 8,579.04
  4. Step 4: Simplify right side
    13,769.52x = 177,318,805.11
  5. Step 5: Solve for x
    x = 177,318,805.11/13,769.52
  6. Step 6: Final answer
    x = 12,877.63

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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.