Home / 14,839.87-20,478.74-8,125.37

Finding the Fourth Proportional to 14,839.87, 20,478.74 and 8,125.37

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Solution

The fourth proportional to 14,839.87, 20,478.74 and 8,125.37 is: 11,212.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,839.87 : 20,478.74 = 8,125.37 : x
  2. Step 2: Convert to fraction form
    14,839.87/20,478.74 = 8,125.37/x
  3. Step 3: Cross multiply
    14,839.87x = 20,478.74 × 8,125.37
  4. Step 4: Simplify right side
    14,839.87x = 166,397,299.01
  5. Step 5: Solve for x
    x = 166,397,299.01/14,839.87
  6. Step 6: Final answer
    x = 11,212.86

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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.