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Finding the Fourth Proportional to 8,155.88, 12,235.32 and 3,475.88

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Solution

The fourth proportional to 8,155.88, 12,235.32 and 3,475.88 is: 5,214.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.88 : 12,235.32 = 3,475.88 : x
  2. Step 2: Convert to fraction form
    8,155.88/12,235.32 = 3,475.88/x
  3. Step 3: Cross multiply
    8,155.88x = 12,235.32 × 3,475.88
  4. Step 4: Simplify right side
    8,155.88x = 42,528,504.08
  5. Step 5: Solve for x
    x = 42,528,504.08/8,155.88
  6. Step 6: Final answer
    x = 5,214.46

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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.