Home / 15,725.20-23,556.14-7,279.80

Finding the Fourth Proportional to 15,725.20, 23,556.14 and 7,279.80

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Solution

The fourth proportional to 15,725.20, 23,556.14 and 7,279.80 is: 10,905.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,725.20 : 23,556.14 = 7,279.80 : x
  2. Step 2: Convert to fraction form
    15,725.20/23,556.14 = 7,279.80/x
  3. Step 3: Cross multiply
    15,725.20x = 23,556.14 × 7,279.80
  4. Step 4: Simplify right side
    15,725.20x = 171,483,987.97
  5. Step 5: Solve for x
    x = 171,483,987.97/15,725.20
  6. Step 6: Final answer
    x = 10,905.04

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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.