Home / 7,981.66-11,974.86-4,088.80

Finding the Fourth Proportional to 7,981.66, 11,974.86 and 4,088.80

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Solution

The fourth proportional to 7,981.66, 11,974.86 and 4,088.80 is: 6,134.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.66 : 11,974.86 = 4,088.80 : x
  2. Step 2: Convert to fraction form
    7,981.66/11,974.86 = 4,088.80/x
  3. Step 3: Cross multiply
    7,981.66x = 11,974.86 × 4,088.80
  4. Step 4: Simplify right side
    7,981.66x = 48,962,807.57
  5. Step 5: Solve for x
    x = 48,962,807.57/7,981.66
  6. Step 6: Final answer
    x = 6,134.41

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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.