Home / 8,001.10-11,985.56-3,986.38

Finding the Fourth Proportional to 8,001.10, 11,985.56 and 3,986.38

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Solution

The fourth proportional to 8,001.10, 11,985.56 and 3,986.38 is: 5,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.10 : 11,985.56 = 3,986.38 : x
  2. Step 2: Convert to fraction form
    8,001.10/11,985.56 = 3,986.38/x
  3. Step 3: Cross multiply
    8,001.10x = 11,985.56 × 3,986.38
  4. Step 4: Simplify right side
    8,001.10x = 47,778,996.67
  5. Step 5: Solve for x
    x = 47,778,996.67/8,001.10
  6. Step 6: Final answer
    x = 5,971.55

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1.5x scale

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.