Home / 7,208.70-10,791.45-6,431.10

Finding the Fourth Proportional to 7,208.70, 10,791.45 and 6,431.10

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Solution

The fourth proportional to 7,208.70, 10,791.45 and 6,431.10 is: 9,627.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.70 : 10,791.45 = 6,431.10 : x
  2. Step 2: Convert to fraction form
    7,208.70/10,791.45 = 6,431.10/x
  3. Step 3: Cross multiply
    7,208.70x = 10,791.45 × 6,431.10
  4. Step 4: Simplify right side
    7,208.70x = 69,400,894.10
  5. Step 5: Solve for x
    x = 69,400,894.10/7,208.70
  6. Step 6: Final answer
    x = 9,627.38

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1.5x scale

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.