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Finding the Fourth Proportional to 6,807.38, 9,390.43 and 5,751.47

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Solution

The fourth proportional to 6,807.38, 9,390.43 and 5,751.47 is: 7,933.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,807.38 : 9,390.43 = 5,751.47 : x
  2. Step 2: Convert to fraction form
    6,807.38/9,390.43 = 5,751.47/x
  3. Step 3: Cross multiply
    6,807.38x = 9,390.43 × 5,751.47
  4. Step 4: Simplify right side
    6,807.38x = 54,008,767.48
  5. Step 5: Solve for x
    x = 54,008,767.48/6,807.38
  6. Step 6: Final answer
    x = 7,933.86

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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.