Home / 8,781.99-13,171.04-2,540.63

Finding the Fourth Proportional to 8,781.99, 13,171.04 and 2,540.63

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Solution

The fourth proportional to 8,781.99, 13,171.04 and 2,540.63 is: 3,810.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.99 : 13,171.04 = 2,540.63 : x
  2. Step 2: Convert to fraction form
    8,781.99/13,171.04 = 2,540.63/x
  3. Step 3: Cross multiply
    8,781.99x = 13,171.04 × 2,540.63
  4. Step 4: Simplify right side
    8,781.99x = 33,462,769.11
  5. Step 5: Solve for x
    x = 33,462,769.11/8,781.99
  6. Step 6: Final answer
    x = 3,810.39

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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.