Home / 7,821.67-10,791.26-4,462.12

Finding the Fourth Proportional to 7,821.67, 10,791.26 and 4,462.12

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Solution

The fourth proportional to 7,821.67, 10,791.26 and 4,462.12 is: 6,156.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.67 : 10,791.26 = 4,462.12 : x
  2. Step 2: Convert to fraction form
    7,821.67/10,791.26 = 4,462.12/x
  3. Step 3: Cross multiply
    7,821.67x = 10,791.26 × 4,462.12
  4. Step 4: Simplify right side
    7,821.67x = 48,151,881.25
  5. Step 5: Solve for x
    x = 48,151,881.25/7,821.67
  6. Step 6: Final answer
    x = 6,156.22

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1.5x scale

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.