Home / 18,359.92-25,344.45-12,399.67

Finding the Fourth Proportional to 18,359.92, 25,344.45 and 12,399.67

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Solution

The fourth proportional to 18,359.92, 25,344.45 and 12,399.67 is: 17,116.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.92 : 25,344.45 = 12,399.67 : x
  2. Step 2: Convert to fraction form
    18,359.92/25,344.45 = 12,399.67/x
  3. Step 3: Cross multiply
    18,359.92x = 25,344.45 × 12,399.67
  4. Step 4: Simplify right side
    18,359.92x = 314,262,816.33
  5. Step 5: Solve for x
    x = 314,262,816.33/18,359.92
  6. Step 6: Final answer
    x = 17,116.79

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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.