Home / 11,639.87-16,063.37-6,604.30

Finding the Fourth Proportional to 11,639.87, 16,063.37 and 6,604.30

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Solution

The fourth proportional to 11,639.87, 16,063.37 and 6,604.30 is: 9,114.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.87 : 16,063.37 = 6,604.30 : x
  2. Step 2: Convert to fraction form
    11,639.87/16,063.37 = 6,604.30/x
  3. Step 3: Cross multiply
    11,639.87x = 16,063.37 × 6,604.30
  4. Step 4: Simplify right side
    11,639.87x = 106,087,201.15
  5. Step 5: Solve for x
    x = 106,087,201.15/11,639.87
  6. Step 6: Final answer
    x = 9,114.13

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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.