Home / 11,982.22-16,519.35-8,392.36

Finding the Fourth Proportional to 11,982.22, 16,519.35 and 8,392.36

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Solution

The fourth proportional to 11,982.22, 16,519.35 and 8,392.36 is: 11,570.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.22 : 16,519.35 = 8,392.36 : x
  2. Step 2: Convert to fraction form
    11,982.22/16,519.35 = 8,392.36/x
  3. Step 3: Cross multiply
    11,982.22x = 16,519.35 × 8,392.36
  4. Step 4: Simplify right side
    11,982.22x = 138,636,332.17
  5. Step 5: Solve for x
    x = 138,636,332.17/11,982.22
  6. Step 6: Final answer
    x = 11,570.17

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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.