Home / 10,129.90-15,201.63-3,556.10

Finding the Fourth Proportional to 10,129.90, 15,201.63 and 3,556.10

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Solution

The fourth proportional to 10,129.90, 15,201.63 and 3,556.10 is: 5,336.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.90 : 15,201.63 = 3,556.10 : x
  2. Step 2: Convert to fraction form
    10,129.90/15,201.63 = 3,556.10/x
  3. Step 3: Cross multiply
    10,129.90x = 15,201.63 × 3,556.10
  4. Step 4: Simplify right side
    10,129.90x = 54,058,431.54
  5. Step 5: Solve for x
    x = 54,058,431.54/10,129.90
  6. Step 6: Final answer
    x = 5,336.52

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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.