Home / 13,183.93-18,193.66-7,215.52

Finding the Fourth Proportional to 13,183.93, 18,193.66 and 7,215.52

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Solution

The fourth proportional to 13,183.93, 18,193.66 and 7,215.52 is: 9,957.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.93 : 18,193.66 = 7,215.52 : x
  2. Step 2: Convert to fraction form
    13,183.93/18,193.66 = 7,215.52/x
  3. Step 3: Cross multiply
    13,183.93x = 18,193.66 × 7,215.52
  4. Step 4: Simplify right side
    13,183.93x = 131,276,717.60
  5. Step 5: Solve for x
    x = 131,276,717.60/13,183.93
  6. Step 6: Final answer
    x = 9,957.33

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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.