Home / 7,884.10-11,815.02-4,375.66

Finding the Fourth Proportional to 7,884.10, 11,815.02 and 4,375.66

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Solution

The fourth proportional to 7,884.10, 11,815.02 and 4,375.66 is: 6,557.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.10 : 11,815.02 = 4,375.66 : x
  2. Step 2: Convert to fraction form
    7,884.10/11,815.02 = 4,375.66/x
  3. Step 3: Cross multiply
    7,884.10x = 11,815.02 × 4,375.66
  4. Step 4: Simplify right side
    7,884.10x = 51,698,510.41
  5. Step 5: Solve for x
    x = 51,698,510.41/7,884.10
  6. Step 6: Final answer
    x = 6,557.31

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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.