Home / 6,750.40-10,121.80-5,186.52

Finding the Fourth Proportional to 6,750.40, 10,121.80 and 5,186.52

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Solution

The fourth proportional to 6,750.40, 10,121.80 and 5,186.52 is: 7,776.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,750.40 : 10,121.80 = 5,186.52 : x
  2. Step 2: Convert to fraction form
    6,750.40/10,121.80 = 5,186.52/x
  3. Step 3: Cross multiply
    6,750.40x = 10,121.80 × 5,186.52
  4. Step 4: Simplify right side
    6,750.40x = 52,496,918.14
  5. Step 5: Solve for x
    x = 52,496,918.14/6,750.40
  6. Step 6: Final answer
    x = 7,776.86

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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.