Home / 6,415.56-8,855.34-4,059.09

Finding the Fourth Proportional to 6,415.56, 8,855.34 and 4,059.09

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Solution

The fourth proportional to 6,415.56, 8,855.34 and 4,059.09 is: 5,602.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415.56 : 8,855.34 = 4,059.09 : x
  2. Step 2: Convert to fraction form
    6,415.56/8,855.34 = 4,059.09/x
  3. Step 3: Cross multiply
    6,415.56x = 8,855.34 × 4,059.09
  4. Step 4: Simplify right side
    6,415.56x = 35,944,622.04
  5. Step 5: Solve for x
    x = 35,944,622.04/6,415.56
  6. Step 6: Final answer
    x = 5,602.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.