Home / 16,930.40-25,395.60-11,400.80

Finding the Fourth Proportional to 16,930.40, 25,395.60 and 11,400.80

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Solution

The fourth proportional to 16,930.40, 25,395.60 and 11,400.80 is: 17,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,930.40 : 25,395.60 = 11,400.80 : x
  2. Step 2: Convert to fraction form
    16,930.40/25,395.60 = 11,400.80/x
  3. Step 3: Cross multiply
    16,930.40x = 25,395.60 × 11,400.80
  4. Step 4: Simplify right side
    16,930.40x = 289,530,156.48
  5. Step 5: Solve for x
    x = 289,530,156.48/16,930.40
  6. Step 6: Final answer
    x = 17,101.20

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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.