Home / 16,879.60-25,319.40-5,192.80

Finding the Fourth Proportional to 16,879.60, 25,319.40 and 5,192.80

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Solution

The fourth proportional to 16,879.60, 25,319.40 and 5,192.80 is: 7,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.60 : 25,319.40 = 5,192.80 : x
  2. Step 2: Convert to fraction form
    16,879.60/25,319.40 = 5,192.80/x
  3. Step 3: Cross multiply
    16,879.60x = 25,319.40 × 5,192.80
  4. Step 4: Simplify right side
    16,879.60x = 131,478,580.32
  5. Step 5: Solve for x
    x = 131,478,580.32/16,879.60
  6. Step 6: Final answer
    x = 7,789.20

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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.