Home / 17,087.16-25,631.96-5,239.40

Finding the Fourth Proportional to 17,087.16, 25,631.96 and 5,239.40

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Solution

The fourth proportional to 17,087.16, 25,631.96 and 5,239.40 is: 7,859.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,087.16 : 25,631.96 = 5,239.40 : x
  2. Step 2: Convert to fraction form
    17,087.16/25,631.96 = 5,239.40/x
  3. Step 3: Cross multiply
    17,087.16x = 25,631.96 × 5,239.40
  4. Step 4: Simplify right side
    17,087.16x = 134,295,936.87
  5. Step 5: Solve for x
    x = 134,295,936.87/17,087.16
  6. Step 6: Final answer
    x = 7,859.47

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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.