Home / 10,120.26-15,179.96-3,099.98

Finding the Fourth Proportional to 10,120.26, 15,179.96 and 3,099.98

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Solution

The fourth proportional to 10,120.26, 15,179.96 and 3,099.98 is: 4,649.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.26 : 15,179.96 = 3,099.98 : x
  2. Step 2: Convert to fraction form
    10,120.26/15,179.96 = 3,099.98/x
  3. Step 3: Cross multiply
    10,120.26x = 15,179.96 × 3,099.98
  4. Step 4: Simplify right side
    10,120.26x = 47,057,572.40
  5. Step 5: Solve for x
    x = 47,057,572.40/10,120.26
  6. Step 6: Final answer
    x = 4,649.84

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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.