Home / 12,110.72-18,173.12-5,090.16

Finding the Fourth Proportional to 12,110.72, 18,173.12 and 5,090.16

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Solution

The fourth proportional to 12,110.72, 18,173.12 and 5,090.16 is: 7,638.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.72 : 18,173.12 = 5,090.16 : x
  2. Step 2: Convert to fraction form
    12,110.72/18,173.12 = 5,090.16/x
  3. Step 3: Cross multiply
    12,110.72x = 18,173.12 × 5,090.16
  4. Step 4: Simplify right side
    12,110.72x = 92,504,088.50
  5. Step 5: Solve for x
    x = 92,504,088.50/12,110.72
  6. Step 6: Final answer
    x = 7,638.20

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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.