Home / 12,177.21-16,805.06-6,872.01

Finding the Fourth Proportional to 12,177.21, 16,805.06 and 6,872.01

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Solution

The fourth proportional to 12,177.21, 16,805.06 and 6,872.01 is: 9,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.21 : 16,805.06 = 6,872.01 : x
  2. Step 2: Convert to fraction form
    12,177.21/16,805.06 = 6,872.01/x
  3. Step 3: Cross multiply
    12,177.21x = 16,805.06 × 6,872.01
  4. Step 4: Simplify right side
    12,177.21x = 115,484,540.37
  5. Step 5: Solve for x
    x = 115,484,540.37/12,177.21
  6. Step 6: Final answer
    x = 9,483.66

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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.