Home / 18,519.60-25,556.04-10,134.48

Finding the Fourth Proportional to 18,519.60, 25,556.04 and 10,134.48

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Solution

The fourth proportional to 18,519.60, 25,556.04 and 10,134.48 is: 13,985.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.60 : 25,556.04 = 10,134.48 : x
  2. Step 2: Convert to fraction form
    18,519.60/25,556.04 = 10,134.48/x
  3. Step 3: Cross multiply
    18,519.60x = 25,556.04 × 10,134.48
  4. Step 4: Simplify right side
    18,519.60x = 258,997,176.26
  5. Step 5: Solve for x
    x = 258,997,176.26/18,519.60
  6. Step 6: Final answer
    x = 13,985.03

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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.