Home / 8,617.50-11,893.80-5,628.18

Finding the Fourth Proportional to 8,617.50, 11,893.80 and 5,628.18

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Solution

The fourth proportional to 8,617.50, 11,893.80 and 5,628.18 is: 7,767.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.50 : 11,893.80 = 5,628.18 : x
  2. Step 2: Convert to fraction form
    8,617.50/11,893.80 = 5,628.18/x
  3. Step 3: Cross multiply
    8,617.50x = 11,893.80 × 5,628.18
  4. Step 4: Simplify right side
    8,617.50x = 66,940,447.28
  5. Step 5: Solve for x
    x = 66,940,447.28/8,617.50
  6. Step 6: Final answer
    x = 7,767.97

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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.