Home / 7,914.78-11,857.05-4,795.74

Finding the Fourth Proportional to 7,914.78, 11,857.05 and 4,795.74

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Solution

The fourth proportional to 7,914.78, 11,857.05 and 4,795.74 is: 7,184.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.78 : 11,857.05 = 4,795.74 : x
  2. Step 2: Convert to fraction form
    7,914.78/11,857.05 = 4,795.74/x
  3. Step 3: Cross multiply
    7,914.78x = 11,857.05 × 4,795.74
  4. Step 4: Simplify right side
    7,914.78x = 56,863,328.97
  5. Step 5: Solve for x
    x = 56,863,328.97/7,914.78
  6. Step 6: Final answer
    x = 7,184.45

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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.