Home / 18,479.46-25,504.76-10,520.58

Finding the Fourth Proportional to 18,479.46, 25,504.76 and 10,520.58

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Solution

The fourth proportional to 18,479.46, 25,504.76 and 10,520.58 is: 14,520.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479.46 : 25,504.76 = 10,520.58 : x
  2. Step 2: Convert to fraction form
    18,479.46/25,504.76 = 10,520.58/x
  3. Step 3: Cross multiply
    18,479.46x = 25,504.76 × 10,520.58
  4. Step 4: Simplify right side
    18,479.46x = 268,324,867.96
  5. Step 5: Solve for x
    x = 268,324,867.96/18,479.46
  6. Step 6: Final answer
    x = 14,520.17

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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.