Home / 15,014.69-20,719.46-8,299.91

Finding the Fourth Proportional to 15,014.69, 20,719.46 and 8,299.91

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Solution

The fourth proportional to 15,014.69, 20,719.46 and 8,299.91 is: 11,453.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,014.69 : 20,719.46 = 8,299.91 : x
  2. Step 2: Convert to fraction form
    15,014.69/20,719.46 = 8,299.91/x
  3. Step 3: Cross multiply
    15,014.69x = 20,719.46 × 8,299.91
  4. Step 4: Simplify right side
    15,014.69x = 171,969,611.75
  5. Step 5: Solve for x
    x = 171,969,611.75/15,014.69
  6. Step 6: Final answer
    x = 11,453.42

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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.