Home / 8,128.54-11,217.04-4,592.08

Finding the Fourth Proportional to 8,128.54, 11,217.04 and 4,592.08

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Solution

The fourth proportional to 8,128.54, 11,217.04 and 4,592.08 is: 6,336.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.54 : 11,217.04 = 4,592.08 : x
  2. Step 2: Convert to fraction form
    8,128.54/11,217.04 = 4,592.08/x
  3. Step 3: Cross multiply
    8,128.54x = 11,217.04 × 4,592.08
  4. Step 4: Simplify right side
    8,128.54x = 51,509,545.04
  5. Step 5: Solve for x
    x = 51,509,545.04/8,128.54
  6. Step 6: Final answer
    x = 6,336.88

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Half scale
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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.