Home / 11,079.60-16,619.52-6,406.80

Finding the Fourth Proportional to 11,079.60, 16,619.52 and 6,406.80

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Solution

The fourth proportional to 11,079.60, 16,619.52 and 6,406.80 is: 9,610.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.60 : 16,619.52 = 6,406.80 : x
  2. Step 2: Convert to fraction form
    11,079.60/16,619.52 = 6,406.80/x
  3. Step 3: Cross multiply
    11,079.60x = 16,619.52 × 6,406.80
  4. Step 4: Simplify right side
    11,079.60x = 106,477,940.74
  5. Step 5: Solve for x
    x = 106,477,940.74/11,079.60
  6. Step 6: Final answer
    x = 9,610.27

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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.