Home / 8,587.55-12,876.06-3,654.38

Finding the Fourth Proportional to 8,587.55, 12,876.06 and 3,654.38

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Solution

The fourth proportional to 8,587.55, 12,876.06 and 3,654.38 is: 5,479.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.55 : 12,876.06 = 3,654.38 : x
  2. Step 2: Convert to fraction form
    8,587.55/12,876.06 = 3,654.38/x
  3. Step 3: Cross multiply
    8,587.55x = 12,876.06 × 3,654.38
  4. Step 4: Simplify right side
    8,587.55x = 47,054,016.14
  5. Step 5: Solve for x
    x = 47,054,016.14/8,587.55
  6. Step 6: Final answer
    x = 5,479.33

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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.