Home / 13,855.06-20,785.30-5,090.04

Finding the Fourth Proportional to 13,855.06, 20,785.30 and 5,090.04

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Solution

The fourth proportional to 13,855.06, 20,785.30 and 5,090.04 is: 7,636.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.06 : 20,785.30 = 5,090.04 : x
  2. Step 2: Convert to fraction form
    13,855.06/20,785.30 = 5,090.04/x
  3. Step 3: Cross multiply
    13,855.06x = 20,785.30 × 5,090.04
  4. Step 4: Simplify right side
    13,855.06x = 105,798,008.41
  5. Step 5: Solve for x
    x = 105,798,008.41/13,855.06
  6. Step 6: Final answer
    x = 7,636.06

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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.