Home / 16,872.36-25,313.40-7,009.80

Finding the Fourth Proportional to 16,872.36, 25,313.40 and 7,009.80

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Solution

The fourth proportional to 16,872.36, 25,313.40 and 7,009.80 is: 10,516.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872.36 : 25,313.40 = 7,009.80 : x
  2. Step 2: Convert to fraction form
    16,872.36/25,313.40 = 7,009.80/x
  3. Step 3: Cross multiply
    16,872.36x = 25,313.40 × 7,009.80
  4. Step 4: Simplify right side
    16,872.36x = 177,441,871.32
  5. Step 5: Solve for x
    x = 177,441,871.32/16,872.36
  6. Step 6: Final answer
    x = 10,516.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.