Home / 13,195.01-18,209.47-7,227.07

Finding the Fourth Proportional to 13,195.01, 18,209.47 and 7,227.07

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Solution

The fourth proportional to 13,195.01, 18,209.47 and 7,227.07 is: 9,973.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.01 : 18,209.47 = 7,227.07 : x
  2. Step 2: Convert to fraction form
    13,195.01/18,209.47 = 7,227.07/x
  3. Step 3: Cross multiply
    13,195.01x = 18,209.47 × 7,227.07
  4. Step 4: Simplify right side
    13,195.01x = 131,601,050.76
  5. Step 5: Solve for x
    x = 131,601,050.76/13,195.01
  6. Step 6: Final answer
    x = 9,973.54

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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.