Home / 11,995.62-16,554.15-6,689.86

Finding the Fourth Proportional to 11,995.62, 16,554.15 and 6,689.86

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Solution

The fourth proportional to 11,995.62, 16,554.15 and 6,689.86 is: 9,232.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.62 : 16,554.15 = 6,689.86 : x
  2. Step 2: Convert to fraction form
    11,995.62/16,554.15 = 6,689.86/x
  3. Step 3: Cross multiply
    11,995.62x = 16,554.15 × 6,689.86
  4. Step 4: Simplify right side
    11,995.62x = 110,744,945.92
  5. Step 5: Solve for x
    x = 110,744,945.92/11,995.62
  6. Step 6: Final answer
    x = 9,232.12

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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.