Home / 13,231.01-18,258.77-7,262.72

Finding the Fourth Proportional to 13,231.01, 18,258.77 and 7,262.72

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Solution

The fourth proportional to 13,231.01, 18,258.77 and 7,262.72 is: 10,022.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.01 : 18,258.77 = 7,262.72 : x
  2. Step 2: Convert to fraction form
    13,231.01/18,258.77 = 7,262.72/x
  3. Step 3: Cross multiply
    13,231.01x = 18,258.77 × 7,262.72
  4. Step 4: Simplify right side
    13,231.01x = 132,608,366.21
  5. Step 5: Solve for x
    x = 132,608,366.21/13,231.01
  6. Step 6: Final answer
    x = 10,022.55

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Half scale
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Double scale
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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.