Home / 18,346.11-25,314.42-11,971.02

Finding the Fourth Proportional to 18,346.11, 25,314.42 and 11,971.02

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Solution

The fourth proportional to 18,346.11, 25,314.42 and 11,971.02 is: 16,517.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,346.11 : 25,314.42 = 11,971.02 : x
  2. Step 2: Convert to fraction form
    18,346.11/25,314.42 = 11,971.02/x
  3. Step 3: Cross multiply
    18,346.11x = 25,314.42 × 11,971.02
  4. Step 4: Simplify right side
    18,346.11x = 303,039,428.11
  5. Step 5: Solve for x
    x = 303,039,428.11/18,346.11
  6. Step 6: Final answer
    x = 16,517.91

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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.