Home / 8,455.64-12,675.18-3,528.68

Finding the Fourth Proportional to 8,455.64, 12,675.18 and 3,528.68

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Solution

The fourth proportional to 8,455.64, 12,675.18 and 3,528.68 is: 5,289.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.64 : 12,675.18 = 3,528.68 : x
  2. Step 2: Convert to fraction form
    8,455.64/12,675.18 = 3,528.68/x
  3. Step 3: Cross multiply
    8,455.64x = 12,675.18 × 3,528.68
  4. Step 4: Simplify right side
    8,455.64x = 44,726,654.16
  5. Step 5: Solve for x
    x = 44,726,654.16/8,455.64
  6. Step 6: Final answer
    x = 5,289.56

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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.