Home / 12,440.92-17,168.90-6,776.13

Finding the Fourth Proportional to 12,440.92, 17,168.90 and 6,776.13

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Solution

The fourth proportional to 12,440.92, 17,168.90 and 6,776.13 is: 9,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.92 : 17,168.90 = 6,776.13 : x
  2. Step 2: Convert to fraction form
    12,440.92/17,168.90 = 6,776.13/x
  3. Step 3: Cross multiply
    12,440.92x = 17,168.90 × 6,776.13
  4. Step 4: Simplify right side
    12,440.92x = 116,338,709.16
  5. Step 5: Solve for x
    x = 116,338,709.16/12,440.92
  6. Step 6: Final answer
    x = 9,351.30

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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.