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Finding the Fourth Proportional to 6,783.81, 9,363.02 and 4,665.09

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Solution

The fourth proportional to 6,783.81, 9,363.02 and 4,665.09 is: 6,438.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,783.81 : 9,363.02 = 4,665.09 : x
  2. Step 2: Convert to fraction form
    6,783.81/9,363.02 = 4,665.09/x
  3. Step 3: Cross multiply
    6,783.81x = 9,363.02 × 4,665.09
  4. Step 4: Simplify right side
    6,783.81x = 43,679,330.97
  5. Step 5: Solve for x
    x = 43,679,330.97/6,783.81
  6. Step 6: Final answer
    x = 6,438.76

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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.