Home / 18,720.22-25,830.85-11,062.43

Finding the Fourth Proportional to 18,720.22, 25,830.85 and 11,062.43

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Solution

The fourth proportional to 18,720.22, 25,830.85 and 11,062.43 is: 15,264.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.22 : 25,830.85 = 11,062.43 : x
  2. Step 2: Convert to fraction form
    18,720.22/25,830.85 = 11,062.43/x
  3. Step 3: Cross multiply
    18,720.22x = 25,830.85 × 11,062.43
  4. Step 4: Simplify right side
    18,720.22x = 285,751,969.97
  5. Step 5: Solve for x
    x = 285,751,969.97/18,720.22
  6. Step 6: Final answer
    x = 15,264.35

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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.