Home / 18,189.12-25,100.81-10,122.64

Finding the Fourth Proportional to 18,189.12, 25,100.81 and 10,122.64

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Solution

The fourth proportional to 18,189.12, 25,100.81 and 10,122.64 is: 13,969.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189.12 : 25,100.81 = 10,122.64 : x
  2. Step 2: Convert to fraction form
    18,189.12/25,100.81 = 10,122.64/x
  3. Step 3: Cross multiply
    18,189.12x = 25,100.81 × 10,122.64
  4. Step 4: Simplify right side
    18,189.12x = 254,086,349.97
  5. Step 5: Solve for x
    x = 254,086,349.97/18,189.12
  6. Step 6: Final answer
    x = 13,969.14

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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.