Home / 11,789.94-16,270.16-6,485.09

Finding the Fourth Proportional to 11,789.94, 16,270.16 and 6,485.09

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Solution

The fourth proportional to 11,789.94, 16,270.16 and 6,485.09 is: 8,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,789.94 : 16,270.16 = 6,485.09 : x
  2. Step 2: Convert to fraction form
    11,789.94/16,270.16 = 6,485.09/x
  3. Step 3: Cross multiply
    11,789.94x = 16,270.16 × 6,485.09
  4. Step 4: Simplify right side
    11,789.94x = 105,513,460.16
  5. Step 5: Solve for x
    x = 105,513,460.16/11,789.94
  6. Step 6: Final answer
    x = 8,949.45

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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.