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Finding the Fourth Proportional to 6,812.58, 9,402.47 and 5,676.45

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Solution

The fourth proportional to 6,812.58, 9,402.47 and 5,676.45 is: 7,834.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,812.58 : 9,402.47 = 5,676.45 : x
  2. Step 2: Convert to fraction form
    6,812.58/9,402.47 = 5,676.45/x
  3. Step 3: Cross multiply
    6,812.58x = 9,402.47 × 5,676.45
  4. Step 4: Simplify right side
    6,812.58x = 53,372,650.83
  5. Step 5: Solve for x
    x = 53,372,650.83/6,812.58
  6. Step 6: Final answer
    x = 7,834.43

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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.