Home / 16,981.75-25,479.69-7,489.22

Finding the Fourth Proportional to 16,981.75, 25,479.69 and 7,489.22

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Solution

The fourth proportional to 16,981.75, 25,479.69 and 7,489.22 is: 11,236.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,981.75 : 25,479.69 = 7,489.22 : x
  2. Step 2: Convert to fraction form
    16,981.75/25,479.69 = 7,489.22/x
  3. Step 3: Cross multiply
    16,981.75x = 25,479.69 × 7,489.22
  4. Step 4: Simplify right side
    16,981.75x = 190,823,048.68
  5. Step 5: Solve for x
    x = 190,823,048.68/16,981.75
  6. Step 6: Final answer
    x = 11,236.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.