Home / 8,235.05-12,354.53-2,688.41

Finding the Fourth Proportional to 8,235.05, 12,354.53 and 2,688.41

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Solution

The fourth proportional to 8,235.05, 12,354.53 and 2,688.41 is: 4,033.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.05 : 12,354.53 = 2,688.41 : x
  2. Step 2: Convert to fraction form
    8,235.05/12,354.53 = 2,688.41/x
  3. Step 3: Cross multiply
    8,235.05x = 12,354.53 × 2,688.41
  4. Step 4: Simplify right side
    8,235.05x = 33,213,966.78
  5. Step 5: Solve for x
    x = 33,213,966.78/8,235.05
  6. Step 6: Final answer
    x = 4,033.25

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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.