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Finding the Fourth Proportional to 7,673.56, 11,489.81 and 4,382.12

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Solution

The fourth proportional to 7,673.56, 11,489.81 and 4,382.12 is: 6,561.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,673.56 : 11,489.81 = 4,382.12 : x
  2. Step 2: Convert to fraction form
    7,673.56/11,489.81 = 4,382.12/x
  3. Step 3: Cross multiply
    7,673.56x = 11,489.81 × 4,382.12
  4. Step 4: Simplify right side
    7,673.56x = 50,349,726.20
  5. Step 5: Solve for x
    x = 50,349,726.20/7,673.56
  6. Step 6: Final answer
    x = 6,561.46

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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.