Home / 8,530.14-11,771.61-5,172.08

Finding the Fourth Proportional to 8,530.14, 11,771.61 and 5,172.08

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Solution

The fourth proportional to 8,530.14, 11,771.61 and 5,172.08 is: 7,137.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.14 : 11,771.61 = 5,172.08 : x
  2. Step 2: Convert to fraction form
    8,530.14/11,771.61 = 5,172.08/x
  3. Step 3: Cross multiply
    8,530.14x = 11,771.61 × 5,172.08
  4. Step 4: Simplify right side
    8,530.14x = 60,883,708.65
  5. Step 5: Solve for x
    x = 60,883,708.65/8,530.14
  6. Step 6: Final answer
    x = 7,137.48

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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.