Home / 16,938.62-25,409.24-5,091.47

Finding the Fourth Proportional to 16,938.62, 25,409.24 and 5,091.47

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Solution

The fourth proportional to 16,938.62, 25,409.24 and 5,091.47 is: 7,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,938.62 : 25,409.24 = 5,091.47 : x
  2. Step 2: Convert to fraction form
    16,938.62/25,409.24 = 5,091.47/x
  3. Step 3: Cross multiply
    16,938.62x = 25,409.24 × 5,091.47
  4. Step 4: Simplify right side
    16,938.62x = 129,370,345.06
  5. Step 5: Solve for x
    x = 129,370,345.06/16,938.62
  6. Step 6: Final answer
    x = 7,637.60

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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.