Home / 12,769.20-19,153.80-8,832.60

Finding the Fourth Proportional to 12,769.20, 19,153.80 and 8,832.60

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Solution

The fourth proportional to 12,769.20, 19,153.80 and 8,832.60 is: 13,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.20 : 19,153.80 = 8,832.60 : x
  2. Step 2: Convert to fraction form
    12,769.20/19,153.80 = 8,832.60/x
  3. Step 3: Cross multiply
    12,769.20x = 19,153.80 × 8,832.60
  4. Step 4: Simplify right side
    12,769.20x = 169,177,853.88
  5. Step 5: Solve for x
    x = 169,177,853.88/12,769.20
  6. Step 6: Final answer
    x = 13,248.90

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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.