Home / 16,620.16-22,935.68-9,168

Finding the Fourth Proportional to 16,620.16, 22,935.68 and 9,168

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Solution

The fourth proportional to 16,620.16, 22,935.68 and 9,168 is: 12,651.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,620.16 : 22,935.68 = 9,168 : x
  2. Step 2: Convert to fraction form
    16,620.16/22,935.68 = 9,168/x
  3. Step 3: Cross multiply
    16,620.16x = 22,935.68 × 9,168
  4. Step 4: Simplify right side
    16,620.16x = 210,274,314.24
  5. Step 5: Solve for x
    x = 210,274,314.24/16,620.16
  6. Step 6: Final answer
    x = 12,651.76

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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.