Home / 13,039.20-17,996.94-8,256.06

Finding the Fourth Proportional to 13,039.20, 17,996.94 and 8,256.06

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Solution

The fourth proportional to 13,039.20, 17,996.94 and 8,256.06 is: 11,395.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.20 : 17,996.94 = 8,256.06 : x
  2. Step 2: Convert to fraction form
    13,039.20/17,996.94 = 8,256.06/x
  3. Step 3: Cross multiply
    13,039.20x = 17,996.94 × 8,256.06
  4. Step 4: Simplify right side
    13,039.20x = 148,583,816.46
  5. Step 5: Solve for x
    x = 148,583,816.46/13,039.20
  6. Step 6: Final answer
    x = 11,395.16

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1.5x scale

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.