Home / 6,750.40-10,125.60-5,110.15

Finding the Fourth Proportional to 6,750.40, 10,125.60 and 5,110.15

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Solution

The fourth proportional to 6,750.40, 10,125.60 and 5,110.15 is: 7,665.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,750.40 : 10,125.60 = 5,110.15 : x
  2. Step 2: Convert to fraction form
    6,750.40/10,125.60 = 5,110.15/x
  3. Step 3: Cross multiply
    6,750.40x = 10,125.60 × 5,110.15
  4. Step 4: Simplify right side
    6,750.40x = 51,743,334.84
  5. Step 5: Solve for x
    x = 51,743,334.84/6,750.40
  6. Step 6: Final answer
    x = 7,665.23

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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.