Home / 8,515.64-11,751.18-4,930.43

Finding the Fourth Proportional to 8,515.64, 11,751.18 and 4,930.43

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Solution

The fourth proportional to 8,515.64, 11,751.18 and 4,930.43 is: 6,803.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.64 : 11,751.18 = 4,930.43 : x
  2. Step 2: Convert to fraction form
    8,515.64/11,751.18 = 4,930.43/x
  3. Step 3: Cross multiply
    8,515.64x = 11,751.18 × 4,930.43
  4. Step 4: Simplify right side
    8,515.64x = 57,938,311.65
  5. Step 5: Solve for x
    x = 57,938,311.65/8,515.64
  6. Step 6: Final answer
    x = 6,803.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.