Home / 16,745.20-25,117.80-6,881.20

Finding the Fourth Proportional to 16,745.20, 25,117.80 and 6,881.20

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Solution

The fourth proportional to 16,745.20, 25,117.80 and 6,881.20 is: 10,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,745.20 : 25,117.80 = 6,881.20 : x
  2. Step 2: Convert to fraction form
    16,745.20/25,117.80 = 6,881.20/x
  3. Step 3: Cross multiply
    16,745.20x = 25,117.80 × 6,881.20
  4. Step 4: Simplify right side
    16,745.20x = 172,840,605.36
  5. Step 5: Solve for x
    x = 172,840,605.36/16,745.20
  6. Step 6: Final answer
    x = 10,321.80

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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.