Home / 10,883.20-16,324.80-7,189.60

Finding the Fourth Proportional to 10,883.20, 16,324.80 and 7,189.60

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Solution

The fourth proportional to 10,883.20, 16,324.80 and 7,189.60 is: 10,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,883.20 : 16,324.80 = 7,189.60 : x
  2. Step 2: Convert to fraction form
    10,883.20/16,324.80 = 7,189.60/x
  3. Step 3: Cross multiply
    10,883.20x = 16,324.80 × 7,189.60
  4. Step 4: Simplify right side
    10,883.20x = 117,368,782.08
  5. Step 5: Solve for x
    x = 117,368,782.08/10,883.20
  6. Step 6: Final answer
    x = 10,784.40

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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.