Home / 11,270.38-15,556.25-6,555.57

Finding the Fourth Proportional to 11,270.38, 15,556.25 and 6,555.57

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Solution

The fourth proportional to 11,270.38, 15,556.25 and 6,555.57 is: 9,048.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,270.38 : 15,556.25 = 6,555.57 : x
  2. Step 2: Convert to fraction form
    11,270.38/15,556.25 = 6,555.57/x
  3. Step 3: Cross multiply
    11,270.38x = 15,556.25 × 6,555.57
  4. Step 4: Simplify right side
    11,270.38x = 101,980,085.81
  5. Step 5: Solve for x
    x = 101,980,085.81/11,270.38
  6. Step 6: Final answer
    x = 9,048.50

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Half scale
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Double scale
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Similar ratio
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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.