Home / 17,005.68-25,512.85-9,991.62

Finding the Fourth Proportional to 17,005.68, 25,512.85 and 9,991.62

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Solution

The fourth proportional to 17,005.68, 25,512.85 and 9,991.62 is: 14,989.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,005.68 : 25,512.85 = 9,991.62 : x
  2. Step 2: Convert to fraction form
    17,005.68/25,512.85 = 9,991.62/x
  3. Step 3: Cross multiply
    17,005.68x = 25,512.85 × 9,991.62
  4. Step 4: Simplify right side
    17,005.68x = 254,914,702.32
  5. Step 5: Solve for x
    x = 254,914,702.32/17,005.68
  6. Step 6: Final answer
    x = 14,989.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.