Home / 10,721.50-16,080.86-3,325.79

Finding the Fourth Proportional to 10,721.50, 16,080.86 and 3,325.79

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Solution

The fourth proportional to 10,721.50, 16,080.86 and 3,325.79 is: 4,988.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.50 : 16,080.86 = 3,325.79 : x
  2. Step 2: Convert to fraction form
    10,721.50/16,080.86 = 3,325.79/x
  3. Step 3: Cross multiply
    10,721.50x = 16,080.86 × 3,325.79
  4. Step 4: Simplify right side
    10,721.50x = 53,481,611.90
  5. Step 5: Solve for x
    x = 53,481,611.90/10,721.50
  6. Step 6: Final answer
    x = 4,988.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.