Home / 15,372.08-21,185.40-11,173.04

Finding the Fourth Proportional to 15,372.08, 21,185.40 and 11,173.04

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Solution

The fourth proportional to 15,372.08, 21,185.40 and 11,173.04 is: 15,398.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,372.08 : 21,185.40 = 11,173.04 : x
  2. Step 2: Convert to fraction form
    15,372.08/21,185.40 = 11,173.04/x
  3. Step 3: Cross multiply
    15,372.08x = 21,185.40 × 11,173.04
  4. Step 4: Simplify right side
    15,372.08x = 236,705,321.62
  5. Step 5: Solve for x
    x = 236,705,321.62/15,372.08
  6. Step 6: Final answer
    x = 15,398.39

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Half 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.