Home / 8,456.28-11,669.25-4,679.38

Finding the Fourth Proportional to 8,456.28, 11,669.25 and 4,679.38

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Solution

The fourth proportional to 8,456.28, 11,669.25 and 4,679.38 is: 6,457.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.28 : 11,669.25 = 4,679.38 : x
  2. Step 2: Convert to fraction form
    8,456.28/11,669.25 = 4,679.38/x
  3. Step 3: Cross multiply
    8,456.28x = 11,669.25 × 4,679.38
  4. Step 4: Simplify right side
    8,456.28x = 54,604,796.72
  5. Step 5: Solve for x
    x = 54,604,796.72/8,456.28
  6. Step 6: Final answer
    x = 6,457.31

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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.