Home / 10,639.20-14,682.10-6,163.82

Finding the Fourth Proportional to 10,639.20, 14,682.10 and 6,163.82

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Solution

The fourth proportional to 10,639.20, 14,682.10 and 6,163.82 is: 8,506.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.20 : 14,682.10 = 6,163.82 : x
  2. Step 2: Convert to fraction form
    10,639.20/14,682.10 = 6,163.82/x
  3. Step 3: Cross multiply
    10,639.20x = 14,682.10 × 6,163.82
  4. Step 4: Simplify right side
    10,639.20x = 90,497,736.12
  5. Step 5: Solve for x
    x = 90,497,736.12/10,639.20
  6. Step 6: Final answer
    x = 8,506.07

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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.