Home / 11,141.08-15,374.88-6,105.20

Finding the Fourth Proportional to 11,141.08, 15,374.88 and 6,105.20

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Solution

The fourth proportional to 11,141.08, 15,374.88 and 6,105.20 is: 8,425.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.08 : 15,374.88 = 6,105.20 : x
  2. Step 2: Convert to fraction form
    11,141.08/15,374.88 = 6,105.20/x
  3. Step 3: Cross multiply
    11,141.08x = 15,374.88 × 6,105.20
  4. Step 4: Simplify right side
    11,141.08x = 93,866,717.38
  5. Step 5: Solve for x
    x = 93,866,717.38/11,141.08
  6. Step 6: Final answer
    x = 8,425.28

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Half scale
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Double 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.