Home / 10,720.30-16,079.54-3,324.60

Finding the Fourth Proportional to 10,720.30, 16,079.54 and 3,324.60

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Solution

The fourth proportional to 10,720.30, 16,079.54 and 3,324.60 is: 4,986.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.30 : 16,079.54 = 3,324.60 : x
  2. Step 2: Convert to fraction form
    10,720.30/16,079.54 = 3,324.60/x
  3. Step 3: Cross multiply
    10,720.30x = 16,079.54 × 3,324.60
  4. Step 4: Simplify right side
    10,720.30x = 53,458,038.68
  5. Step 5: Solve for x
    x = 53,458,038.68/10,720.30
  6. Step 6: Final answer
    x = 4,986.62

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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.