Home / 13,384.68-18,470.25-7,334.90

Finding the Fourth Proportional to 13,384.68, 18,470.25 and 7,334.90

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Solution

The fourth proportional to 13,384.68, 18,470.25 and 7,334.90 is: 10,121.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.68 : 18,470.25 = 7,334.90 : x
  2. Step 2: Convert to fraction form
    13,384.68/18,470.25 = 7,334.90/x
  3. Step 3: Cross multiply
    13,384.68x = 18,470.25 × 7,334.90
  4. Step 4: Simplify right side
    13,384.68x = 135,477,436.73
  5. Step 5: Solve for x
    x = 135,477,436.73/13,384.68
  6. Step 6: Final answer
    x = 10,121.83

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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.