Home / 6,845.20-10,259.29-3,143.50

Finding the Fourth Proportional to 6,845.20, 10,259.29 and 3,143.50

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Solution

The fourth proportional to 6,845.20, 10,259.29 and 3,143.50 is: 4,711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,845.20 : 10,259.29 = 3,143.50 : x
  2. Step 2: Convert to fraction form
    6,845.20/10,259.29 = 3,143.50/x
  3. Step 3: Cross multiply
    6,845.20x = 10,259.29 × 3,143.50
  4. Step 4: Simplify right side
    6,845.20x = 32,250,078.12
  5. Step 5: Solve for x
    x = 32,250,078.12/6,845.20
  6. Step 6: Final answer
    x = 4,711.34

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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.