Home / 8,129.14-11,218.42-4,983.50

Finding the Fourth Proportional to 8,129.14, 11,218.42 and 4,983.50

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Solution

The fourth proportional to 8,129.14, 11,218.42 and 4,983.50 is: 6,877.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.14 : 11,218.42 = 4,983.50 : x
  2. Step 2: Convert to fraction form
    8,129.14/11,218.42 = 4,983.50/x
  3. Step 3: Cross multiply
    8,129.14x = 11,218.42 × 4,983.50
  4. Step 4: Simplify right side
    8,129.14x = 55,906,996.07
  5. Step 5: Solve for x
    x = 55,906,996.07/8,129.14
  6. Step 6: Final answer
    x = 6,877.36

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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.