Home / 16,987.72-25,480.68-5,299.60

Finding the Fourth Proportional to 16,987.72, 25,480.68 and 5,299.60

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Solution

The fourth proportional to 16,987.72, 25,480.68 and 5,299.60 is: 7,949.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,987.72 : 25,480.68 = 5,299.60 : x
  2. Step 2: Convert to fraction form
    16,987.72/25,480.68 = 5,299.60/x
  3. Step 3: Cross multiply
    16,987.72x = 25,480.68 × 5,299.60
  4. Step 4: Simplify right side
    16,987.72x = 135,037,411.73
  5. Step 5: Solve for x
    x = 135,037,411.73/16,987.72
  6. Step 6: Final answer
    x = 7,949.12

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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.