Home / 18,921.38-26,112.31-10,537.88

Finding the Fourth Proportional to 18,921.38, 26,112.31 and 10,537.88

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Solution

The fourth proportional to 18,921.38, 26,112.31 and 10,537.88 is: 14,542.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.38 : 26,112.31 = 10,537.88 : x
  2. Step 2: Convert to fraction form
    18,921.38/26,112.31 = 10,537.88/x
  3. Step 3: Cross multiply
    18,921.38x = 26,112.31 × 10,537.88
  4. Step 4: Simplify right side
    18,921.38x = 275,168,232.40
  5. Step 5: Solve for x
    x = 275,168,232.40/18,921.38
  6. Step 6: Final answer
    x = 14,542.72

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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.