Home / 12,164.21-16,786.59-6,859.02

Finding the Fourth Proportional to 12,164.21, 16,786.59 and 6,859.02

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Solution

The fourth proportional to 12,164.21, 16,786.59 and 6,859.02 is: 9,465.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,164.21 : 16,786.59 = 6,859.02 : x
  2. Step 2: Convert to fraction form
    12,164.21/16,786.59 = 6,859.02/x
  3. Step 3: Cross multiply
    12,164.21x = 16,786.59 × 6,859.02
  4. Step 4: Simplify right side
    12,164.21x = 115,139,593.77
  5. Step 5: Solve for x
    x = 115,139,593.77/12,164.21
  6. Step 6: Final answer
    x = 9,465.44

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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.