Home / 16,977.96-25,463.16-7,128.36

Finding the Fourth Proportional to 16,977.96, 25,463.16 and 7,128.36

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Solution

The fourth proportional to 16,977.96, 25,463.16 and 7,128.36 is: 10,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,977.96 : 25,463.16 = 7,128.36 : x
  2. Step 2: Convert to fraction form
    16,977.96/25,463.16 = 7,128.36/x
  3. Step 3: Cross multiply
    16,977.96x = 25,463.16 × 7,128.36
  4. Step 4: Simplify right side
    16,977.96x = 181,510,571.22
  5. Step 5: Solve for x
    x = 181,510,571.22/16,977.96
  6. Step 6: Final answer
    x = 10,690.95

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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.