Home / 13,216.25-18,236.75-7,246.35

Finding the Fourth Proportional to 13,216.25, 18,236.75 and 7,246.35

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Solution

The fourth proportional to 13,216.25, 18,236.75 and 7,246.35 is: 9,999.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.25 : 18,236.75 = 7,246.35 : x
  2. Step 2: Convert to fraction form
    13,216.25/18,236.75 = 7,246.35/x
  3. Step 3: Cross multiply
    13,216.25x = 18,236.75 × 7,246.35
  4. Step 4: Simplify right side
    13,216.25x = 132,149,873.36
  5. Step 5: Solve for x
    x = 132,149,873.36/13,216.25
  6. Step 6: Final answer
    x = 9,999.04

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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.