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Finding the Fourth Proportional to 7,893.29, 10,893.53 and 6,777.92

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Solution

The fourth proportional to 7,893.29, 10,893.53 and 6,777.92 is: 9,354.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893.29 : 10,893.53 = 6,777.92 : x
  2. Step 2: Convert to fraction form
    7,893.29/10,893.53 = 6,777.92/x
  3. Step 3: Cross multiply
    7,893.29x = 10,893.53 × 6,777.92
  4. Step 4: Simplify right side
    7,893.29x = 73,835,437.33
  5. Step 5: Solve for x
    x = 73,835,437.33/7,893.29
  6. Step 6: Final answer
    x = 9,354.21

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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.