Home / 10,639.56-14,682.61-6,163.57

Finding the Fourth Proportional to 10,639.56, 14,682.61 and 6,163.57

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Solution

The fourth proportional to 10,639.56, 14,682.61 and 6,163.57 is: 8,505.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.56 : 14,682.61 = 6,163.57 : x
  2. Step 2: Convert to fraction form
    10,639.56/14,682.61 = 6,163.57/x
  3. Step 3: Cross multiply
    10,639.56x = 14,682.61 × 6,163.57
  4. Step 4: Simplify right side
    10,639.56x = 90,497,294.52
  5. Step 5: Solve for x
    x = 90,497,294.52/10,639.56
  6. Step 6: Final answer
    x = 8,505.74

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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.