Home / 8,971.21-13,456.77-3,777.09

Finding the Fourth Proportional to 8,971.21, 13,456.77 and 3,777.09

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Solution

The fourth proportional to 8,971.21, 13,456.77 and 3,777.09 is: 5,665.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.21 : 13,456.77 = 3,777.09 : x
  2. Step 2: Convert to fraction form
    8,971.21/13,456.77 = 3,777.09/x
  3. Step 3: Cross multiply
    8,971.21x = 13,456.77 × 3,777.09
  4. Step 4: Simplify right side
    8,971.21x = 50,827,431.40
  5. Step 5: Solve for x
    x = 50,827,431.40/8,971.21
  6. Step 6: Final answer
    x = 5,665.62

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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.