Home / 8,640.07-11,924.79-6,383.14

Finding the Fourth Proportional to 8,640.07, 11,924.79 and 6,383.14

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Solution

The fourth proportional to 8,640.07, 11,924.79 and 6,383.14 is: 8,809.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640.07 : 11,924.79 = 6,383.14 : x
  2. Step 2: Convert to fraction form
    8,640.07/11,924.79 = 6,383.14/x
  3. Step 3: Cross multiply
    8,640.07x = 11,924.79 × 6,383.14
  4. Step 4: Simplify right side
    8,640.07x = 76,117,538.60
  5. Step 5: Solve for x
    x = 76,117,538.60/8,640.07
  6. Step 6: Final answer
    x = 8,809.83

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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.