Home / 18,512.02-25,546.62-10,128.52

Finding the Fourth Proportional to 18,512.02, 25,546.62 and 10,128.52

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Solution

The fourth proportional to 18,512.02, 25,546.62 and 10,128.52 is: 13,977.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512.02 : 25,546.62 = 10,128.52 : x
  2. Step 2: Convert to fraction form
    18,512.02/25,546.62 = 10,128.52/x
  3. Step 3: Cross multiply
    18,512.02x = 25,546.62 × 10,128.52
  4. Step 4: Simplify right side
    18,512.02x = 258,749,451.60
  5. Step 5: Solve for x
    x = 258,749,451.60/18,512.02
  6. Step 6: Final answer
    x = 13,977.38

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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.