Home / 18,687.36-28,042.92-7,001.76

Finding the Fourth Proportional to 18,687.36, 28,042.92 and 7,001.76

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Solution

The fourth proportional to 18,687.36, 28,042.92 and 7,001.76 is: 10,507.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687.36 : 28,042.92 = 7,001.76 : x
  2. Step 2: Convert to fraction form
    18,687.36/28,042.92 = 7,001.76/x
  3. Step 3: Cross multiply
    18,687.36x = 28,042.92 × 7,001.76
  4. Step 4: Simplify right side
    18,687.36x = 196,349,795.54
  5. Step 5: Solve for x
    x = 196,349,795.54/18,687.36
  6. Step 6: Final answer
    x = 10,507.09

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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.