Home / 17,718.80-26,578.20-11,152.40

Finding the Fourth Proportional to 17,718.80, 26,578.20 and 11,152.40

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Solution

The fourth proportional to 17,718.80, 26,578.20 and 11,152.40 is: 16,728.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,718.80 : 26,578.20 = 11,152.40 : x
  2. Step 2: Convert to fraction form
    17,718.80/26,578.20 = 11,152.40/x
  3. Step 3: Cross multiply
    17,718.80x = 26,578.20 × 11,152.40
  4. Step 4: Simplify right side
    17,718.80x = 296,410,717.68
  5. Step 5: Solve for x
    x = 296,410,717.68/17,718.80
  6. Step 6: Final answer
    x = 16,728.60

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Similar ratio
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1.5x scale

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.