Home / 8,698.26-12,005.43-5,553.90

Finding the Fourth Proportional to 8,698.26, 12,005.43 and 5,553.90

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Solution

The fourth proportional to 8,698.26, 12,005.43 and 5,553.90 is: 7,665.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.26 : 12,005.43 = 5,553.90 : x
  2. Step 2: Convert to fraction form
    8,698.26/12,005.43 = 5,553.90/x
  3. Step 3: Cross multiply
    8,698.26x = 12,005.43 × 5,553.90
  4. Step 4: Simplify right side
    8,698.26x = 66,676,957.68
  5. Step 5: Solve for x
    x = 66,676,957.68/8,698.26
  6. Step 6: Final answer
    x = 7,665.55

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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.