Home / 18,675.29-25,774.89-11,960.57

Finding the Fourth Proportional to 18,675.29, 25,774.89 and 11,960.57

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Solution

The fourth proportional to 18,675.29, 25,774.89 and 11,960.57 is: 16,507.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.29 : 25,774.89 = 11,960.57 : x
  2. Step 2: Convert to fraction form
    18,675.29/25,774.89 = 11,960.57/x
  3. Step 3: Cross multiply
    18,675.29x = 25,774.89 × 11,960.57
  4. Step 4: Simplify right side
    18,675.29x = 308,282,376.09
  5. Step 5: Solve for x
    x = 308,282,376.09/18,675.29
  6. Step 6: Final answer
    x = 16,507.50

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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.