Home / 8,636.90-11,918.55-4,860

Finding the Fourth Proportional to 8,636.90, 11,918.55 and 4,860

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Solution

The fourth proportional to 8,636.90, 11,918.55 and 4,860 is: 6,706.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.90 : 11,918.55 = 4,860 : x
  2. Step 2: Convert to fraction form
    8,636.90/11,918.55 = 4,860/x
  3. Step 3: Cross multiply
    8,636.90x = 11,918.55 × 4,860
  4. Step 4: Simplify right side
    8,636.90x = 57,924,153
  5. Step 5: Solve for x
    x = 57,924,153/8,636.90
  6. Step 6: Final answer
    x = 6,706.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.