Home / 8,458.29-12,688.25-3,530.66

Finding the Fourth Proportional to 8,458.29, 12,688.25 and 3,530.66

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Solution

The fourth proportional to 8,458.29, 12,688.25 and 3,530.66 is: 5,296.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.29 : 12,688.25 = 3,530.66 : x
  2. Step 2: Convert to fraction form
    8,458.29/12,688.25 = 3,530.66/x
  3. Step 3: Cross multiply
    8,458.29x = 12,688.25 × 3,530.66
  4. Step 4: Simplify right side
    8,458.29x = 44,797,815.65
  5. Step 5: Solve for x
    x = 44,797,815.65/8,458.29
  6. Step 6: Final answer
    x = 5,296.32

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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.