Home / 8,619.40-11,897.04-5,083.75

Finding the Fourth Proportional to 8,619.40, 11,897.04 and 5,083.75

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Solution

The fourth proportional to 8,619.40, 11,897.04 and 5,083.75 is: 7,016.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.40 : 11,897.04 = 5,083.75 : x
  2. Step 2: Convert to fraction form
    8,619.40/11,897.04 = 5,083.75/x
  3. Step 3: Cross multiply
    8,619.40x = 11,897.04 × 5,083.75
  4. Step 4: Simplify right side
    8,619.40x = 60,481,577.10
  5. Step 5: Solve for x
    x = 60,481,577.10/8,619.40
  6. Step 6: Final answer
    x = 7,016.91

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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.