Home / 18,921.56-26,112.22-10,538.20

Finding the Fourth Proportional to 18,921.56, 26,112.22 and 10,538.20

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Solution

The fourth proportional to 18,921.56, 26,112.22 and 10,538.20 is: 14,542.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.56 : 26,112.22 = 10,538.20 : x
  2. Step 2: Convert to fraction form
    18,921.56/26,112.22 = 10,538.20/x
  3. Step 3: Cross multiply
    18,921.56x = 26,112.22 × 10,538.20
  4. Step 4: Simplify right side
    18,921.56x = 275,175,796.80
  5. Step 5: Solve for x
    x = 275,175,796.80/18,921.56
  6. Step 6: Final answer
    x = 14,542.98

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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.