Home / 11,647.38-16,072.86-6,342.20

Finding the Fourth Proportional to 11,647.38, 16,072.86 and 6,342.20

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Solution

The fourth proportional to 11,647.38, 16,072.86 and 6,342.20 is: 8,751.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,647.38 : 16,072.86 = 6,342.20 : x
  2. Step 2: Convert to fraction form
    11,647.38/16,072.86 = 6,342.20/x
  3. Step 3: Cross multiply
    11,647.38x = 16,072.86 × 6,342.20
  4. Step 4: Simplify right side
    11,647.38x = 101,937,292.69
  5. Step 5: Solve for x
    x = 101,937,292.69/11,647.38
  6. Step 6: Final answer
    x = 8,751.95

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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.