Home / 12,042.87-16,620.15-6,738.18

Finding the Fourth Proportional to 12,042.87, 16,620.15 and 6,738.18

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Solution

The fourth proportional to 12,042.87, 16,620.15 and 6,738.18 is: 9,299.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,042.87 : 16,620.15 = 6,738.18 : x
  2. Step 2: Convert to fraction form
    12,042.87/16,620.15 = 6,738.18/x
  3. Step 3: Cross multiply
    12,042.87x = 16,620.15 × 6,738.18
  4. Step 4: Simplify right side
    12,042.87x = 111,989,562.33
  5. Step 5: Solve for x
    x = 111,989,562.33/12,042.87
  6. Step 6: Final answer
    x = 9,299.24

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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.