Home / 12,769.52-19,138.05-5,742.03

Finding the Fourth Proportional to 12,769.52, 19,138.05 and 5,742.03

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Solution

The fourth proportional to 12,769.52, 19,138.05 and 5,742.03 is: 8,605.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.52 : 19,138.05 = 5,742.03 : x
  2. Step 2: Convert to fraction form
    12,769.52/19,138.05 = 5,742.03/x
  3. Step 3: Cross multiply
    12,769.52x = 19,138.05 × 5,742.03
  4. Step 4: Simplify right side
    12,769.52x = 109,891,257.24
  5. Step 5: Solve for x
    x = 109,891,257.24/12,769.52
  6. Step 6: Final answer
    x = 8,605.75

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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.