Home / 12,089.45-16,682.56-6,712.20

Finding the Fourth Proportional to 12,089.45, 16,682.56 and 6,712.20

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Solution

The fourth proportional to 12,089.45, 16,682.56 and 6,712.20 is: 9,262.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.45 : 16,682.56 = 6,712.20 : x
  2. Step 2: Convert to fraction form
    12,089.45/16,682.56 = 6,712.20/x
  3. Step 3: Cross multiply
    12,089.45x = 16,682.56 × 6,712.20
  4. Step 4: Simplify right side
    12,089.45x = 111,976,662.45
  5. Step 5: Solve for x
    x = 111,976,662.45/12,089.45
  6. Step 6: Final answer
    x = 9,262.34

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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.