Home / 11,424.39-17,127.92-7,905.05

Finding the Fourth Proportional to 11,424.39, 17,127.92 and 7,905.05

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Solution

The fourth proportional to 11,424.39, 17,127.92 and 7,905.05 is: 11,851.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,424.39 : 17,127.92 = 7,905.05 : x
  2. Step 2: Convert to fraction form
    11,424.39/17,127.92 = 7,905.05/x
  3. Step 3: Cross multiply
    11,424.39x = 17,127.92 × 7,905.05
  4. Step 4: Simplify right side
    11,424.39x = 135,396,938.83
  5. Step 5: Solve for x
    x = 135,396,938.83/11,424.39
  6. Step 6: Final answer
    x = 11,851.57

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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.