Home / 13,132.54-18,122.20-7,466.51

Finding the Fourth Proportional to 13,132.54, 18,122.20 and 7,466.51

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Solution

The fourth proportional to 13,132.54, 18,122.20 and 7,466.51 is: 10,303.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.54 : 18,122.20 = 7,466.51 : x
  2. Step 2: Convert to fraction form
    13,132.54/18,122.20 = 7,466.51/x
  3. Step 3: Cross multiply
    13,132.54x = 18,122.20 × 7,466.51
  4. Step 4: Simplify right side
    13,132.54x = 135,309,546.20
  5. Step 5: Solve for x
    x = 135,309,546.20/13,132.54
  6. Step 6: Final answer
    x = 10,303.38

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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.