Home / 8,112.78-11,187.51-5,984.70

Finding the Fourth Proportional to 8,112.78, 11,187.51 and 5,984.70

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Solution

The fourth proportional to 8,112.78, 11,187.51 and 5,984.70 is: 8,252.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.78 : 11,187.51 = 5,984.70 : x
  2. Step 2: Convert to fraction form
    8,112.78/11,187.51 = 5,984.70/x
  3. Step 3: Cross multiply
    8,112.78x = 11,187.51 × 5,984.70
  4. Step 4: Simplify right side
    8,112.78x = 66,953,891.10
  5. Step 5: Solve for x
    x = 66,953,891.10/8,112.78
  6. Step 6: Final answer
    x = 8,252.89

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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.