Home / 12,192.24-16,812.72-10,429.68

Finding the Fourth Proportional to 12,192.24, 16,812.72 and 10,429.68

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Solution

The fourth proportional to 12,192.24, 16,812.72 and 10,429.68 is: 14,382.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.24 : 16,812.72 = 10,429.68 : x
  2. Step 2: Convert to fraction form
    12,192.24/16,812.72 = 10,429.68/x
  3. Step 3: Cross multiply
    12,192.24x = 16,812.72 × 10,429.68
  4. Step 4: Simplify right side
    12,192.24x = 175,351,289.53
  5. Step 5: Solve for x
    x = 175,351,289.53/12,192.24
  6. Step 6: Final answer
    x = 14,382.20

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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.