Home / 17,178.50-25,778.74-7,317.84

Finding the Fourth Proportional to 17,178.50, 25,778.74 and 7,317.84

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Solution

The fourth proportional to 17,178.50, 25,778.74 and 7,317.84 is: 10,981.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,178.50 : 25,778.74 = 7,317.84 : x
  2. Step 2: Convert to fraction form
    17,178.50/25,778.74 = 7,317.84/x
  3. Step 3: Cross multiply
    17,178.50x = 25,778.74 × 7,317.84
  4. Step 4: Simplify right side
    17,178.50x = 188,644,694.72
  5. Step 5: Solve for x
    x = 188,644,694.72/17,178.50
  6. Step 6: Final answer
    x = 10,981.44

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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.