Home / 13,945.36-19,245-8,358.16

Finding the Fourth Proportional to 13,945.36, 19,245 and 8,358.16

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Solution

The fourth proportional to 13,945.36, 19,245 and 8,358.16 is: 11,534.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.36 : 19,245 = 8,358.16 : x
  2. Step 2: Convert to fraction form
    13,945.36/19,245 = 8,358.16/x
  3. Step 3: Cross multiply
    13,945.36x = 19,245 × 8,358.16
  4. Step 4: Simplify right side
    13,945.36x = 160,852,789.20
  5. Step 5: Solve for x
    x = 160,852,789.20/13,945.36
  6. Step 6: Final answer
    x = 11,534.50

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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.