Home / 18,995.85-28,496.52-6,519.03

Finding the Fourth Proportional to 18,995.85, 28,496.52 and 6,519.03

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Solution

The fourth proportional to 18,995.85, 28,496.52 and 6,519.03 is: 9,779.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,995.85 : 28,496.52 = 6,519.03 : x
  2. Step 2: Convert to fraction form
    18,995.85/28,496.52 = 6,519.03/x
  3. Step 3: Cross multiply
    18,995.85x = 28,496.52 × 6,519.03
  4. Step 4: Simplify right side
    18,995.85x = 185,769,668.78
  5. Step 5: Solve for x
    x = 185,769,668.78/18,995.85
  6. Step 6: Final answer
    x = 9,779.49

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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.