Home / 15,805.90-21,816.48-9,092.26

Finding the Fourth Proportional to 15,805.90, 21,816.48 and 9,092.26

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Solution

The fourth proportional to 15,805.90, 21,816.48 and 9,092.26 is: 12,549.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,805.90 : 21,816.48 = 9,092.26 : x
  2. Step 2: Convert to fraction form
    15,805.90/21,816.48 = 9,092.26/x
  3. Step 3: Cross multiply
    15,805.90x = 21,816.48 × 9,092.26
  4. Step 4: Simplify right side
    15,805.90x = 198,361,108.44
  5. Step 5: Solve for x
    x = 198,361,108.44/15,805.90
  6. Step 6: Final answer
    x = 12,549.81

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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.