Home / 11,491.20-17,245.38-8,536.47

Finding the Fourth Proportional to 11,491.20, 17,245.38 and 8,536.47

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Solution

The fourth proportional to 11,491.20, 17,245.38 and 8,536.47 is: 12,811.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,491.20 : 17,245.38 = 8,536.47 : x
  2. Step 2: Convert to fraction form
    11,491.20/17,245.38 = 8,536.47/x
  3. Step 3: Cross multiply
    11,491.20x = 17,245.38 × 8,536.47
  4. Step 4: Simplify right side
    11,491.20x = 147,214,669.01
  5. Step 5: Solve for x
    x = 147,214,669.01/11,491.20
  6. Step 6: Final answer
    x = 12,811.08

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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.