Home / 15,304.92-21,119.37-8,589.54

Finding the Fourth Proportional to 15,304.92, 21,119.37 and 8,589.54

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Solution

The fourth proportional to 15,304.92, 21,119.37 and 8,589.54 is: 11,852.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,304.92 : 21,119.37 = 8,589.54 : x
  2. Step 2: Convert to fraction form
    15,304.92/21,119.37 = 8,589.54/x
  3. Step 3: Cross multiply
    15,304.92x = 21,119.37 × 8,589.54
  4. Step 4: Simplify right side
    15,304.92x = 181,405,673.39
  5. Step 5: Solve for x
    x = 181,405,673.39/15,304.92
  6. Step 6: Final answer
    x = 11,852.77

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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.