Home / 11,754.57-16,221.33-6,449.43

Finding the Fourth Proportional to 11,754.57, 16,221.33 and 6,449.43

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Solution

The fourth proportional to 11,754.57, 16,221.33 and 6,449.43 is: 8,900.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,754.57 : 16,221.33 = 6,449.43 : x
  2. Step 2: Convert to fraction form
    11,754.57/16,221.33 = 6,449.43/x
  3. Step 3: Cross multiply
    11,754.57x = 16,221.33 × 6,449.43
  4. Step 4: Simplify right side
    11,754.57x = 104,618,332.34
  5. Step 5: Solve for x
    x = 104,618,332.34/11,754.57
  6. Step 6: Final answer
    x = 8,900.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.