Home / 11,789.43-16,270.38-6,485.28

Finding the Fourth Proportional to 11,789.43, 16,270.38 and 6,485.28

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Solution

The fourth proportional to 11,789.43, 16,270.38 and 6,485.28 is: 8,950.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,789.43 : 16,270.38 = 6,485.28 : x
  2. Step 2: Convert to fraction form
    11,789.43/16,270.38 = 6,485.28/x
  3. Step 3: Cross multiply
    11,789.43x = 16,270.38 × 6,485.28
  4. Step 4: Simplify right side
    11,789.43x = 105,517,970.01
  5. Step 5: Solve for x
    x = 105,517,970.01/11,789.43
  6. Step 6: Final answer
    x = 8,950.22

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Double scale
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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.