Home / 9,981.72-14,976.36-4,137.84

Finding the Fourth Proportional to 9,981.72, 14,976.36 and 4,137.84

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Solution

The fourth proportional to 9,981.72, 14,976.36 and 4,137.84 is: 6,208.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,981.72 : 14,976.36 = 4,137.84 : x
  2. Step 2: Convert to fraction form
    9,981.72/14,976.36 = 4,137.84/x
  3. Step 3: Cross multiply
    9,981.72x = 14,976.36 × 4,137.84
  4. Step 4: Simplify right side
    9,981.72x = 61,969,781.46
  5. Step 5: Solve for x
    x = 61,969,781.46/9,981.72
  6. Step 6: Final answer
    x = 6,208.33

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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.