Home / 12,087.81-16,682.91-6,711.48

Finding the Fourth Proportional to 12,087.81, 16,682.91 and 6,711.48

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Solution

The fourth proportional to 12,087.81, 16,682.91 and 6,711.48 is: 9,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.81 : 16,682.91 = 6,711.48 : x
  2. Step 2: Convert to fraction form
    12,087.81/16,682.91 = 6,711.48/x
  3. Step 3: Cross multiply
    12,087.81x = 16,682.91 × 6,711.48
  4. Step 4: Simplify right side
    12,087.81x = 111,967,016.81
  5. Step 5: Solve for x
    x = 111,967,016.81/12,087.81
  6. Step 6: Final answer
    x = 9,262.80

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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.