Home / 9,999.14-15,000.83-3,423.56

Finding the Fourth Proportional to 9,999.14, 15,000.83 and 3,423.56

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Solution

The fourth proportional to 9,999.14, 15,000.83 and 3,423.56 is: 5,136.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.14 : 15,000.83 = 3,423.56 : x
  2. Step 2: Convert to fraction form
    9,999.14/15,000.83 = 3,423.56/x
  3. Step 3: Cross multiply
    9,999.14x = 15,000.83 × 3,423.56
  4. Step 4: Simplify right side
    9,999.14x = 51,356,149.43
  5. Step 5: Solve for x
    x = 51,356,149.43/9,999.14
  6. Step 6: Final answer
    x = 5,136.06

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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.