Home / 7,665.10-11,491.81-3,964.97

Finding the Fourth Proportional to 7,665.10, 11,491.81 and 3,964.97

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Solution

The fourth proportional to 7,665.10, 11,491.81 and 3,964.97 is: 5,944.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,665.10 : 11,491.81 = 3,964.97 : x
  2. Step 2: Convert to fraction form
    7,665.10/11,491.81 = 3,964.97/x
  3. Step 3: Cross multiply
    7,665.10x = 11,491.81 × 3,964.97
  4. Step 4: Simplify right side
    7,665.10x = 45,564,681.90
  5. Step 5: Solve for x
    x = 45,564,681.90/7,665.10
  6. Step 6: Final answer
    x = 5,944.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.