Home / 15,409.49-23,092.97-7,999.20

Finding the Fourth Proportional to 15,409.49, 23,092.97 and 7,999.20

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Solution

The fourth proportional to 15,409.49, 23,092.97 and 7,999.20 is: 11,987.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409.49 : 23,092.97 = 7,999.20 : x
  2. Step 2: Convert to fraction form
    15,409.49/23,092.97 = 7,999.20/x
  3. Step 3: Cross multiply
    15,409.49x = 23,092.97 × 7,999.20
  4. Step 4: Simplify right side
    15,409.49x = 184,725,245.63
  5. Step 5: Solve for x
    x = 184,725,245.63/15,409.49
  6. Step 6: Final answer
    x = 11,987.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.