Home / 6,814.10-10,221.15-5,720.60

Finding the Fourth Proportional to 6,814.10, 10,221.15 and 5,720.60

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Solution

The fourth proportional to 6,814.10, 10,221.15 and 5,720.60 is: 8,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,814.10 : 10,221.15 = 5,720.60 : x
  2. Step 2: Convert to fraction form
    6,814.10/10,221.15 = 5,720.60/x
  3. Step 3: Cross multiply
    6,814.10x = 10,221.15 × 5,720.60
  4. Step 4: Simplify right side
    6,814.10x = 58,471,110.69
  5. Step 5: Solve for x
    x = 58,471,110.69/6,814.10
  6. Step 6: Final answer
    x = 8,580.90

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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.