Home / 13,090.44-19,638.54-6,172.68

Finding the Fourth Proportional to 13,090.44, 19,638.54 and 6,172.68

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Solution

The fourth proportional to 13,090.44, 19,638.54 and 6,172.68 is: 9,260.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.44 : 19,638.54 = 6,172.68 : x
  2. Step 2: Convert to fraction form
    13,090.44/19,638.54 = 6,172.68/x
  3. Step 3: Cross multiply
    13,090.44x = 19,638.54 × 6,172.68
  4. Step 4: Simplify right side
    13,090.44x = 121,222,423.09
  5. Step 5: Solve for x
    x = 121,222,423.09/13,090.44
  6. Step 6: Final answer
    x = 9,260.38

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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.