Home / 12,177.32-16,804.40-6,872.09

Finding the Fourth Proportional to 12,177.32, 16,804.40 and 6,872.09

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Solution

The fourth proportional to 12,177.32, 16,804.40 and 6,872.09 is: 9,483.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.32 : 16,804.40 = 6,872.09 : x
  2. Step 2: Convert to fraction form
    12,177.32/16,804.40 = 6,872.09/x
  3. Step 3: Cross multiply
    12,177.32x = 16,804.40 × 6,872.09
  4. Step 4: Simplify right side
    12,177.32x = 115,481,230.81
  5. Step 5: Solve for x
    x = 115,481,230.81/12,177.32
  6. Step 6: Final answer
    x = 9,483.31

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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.