Home / 18,689.67-25,791.66-10,306.17

Finding the Fourth Proportional to 18,689.67, 25,791.66 and 10,306.17

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Solution

The fourth proportional to 18,689.67, 25,791.66 and 10,306.17 is: 14,222.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689.67 : 25,791.66 = 10,306.17 : x
  2. Step 2: Convert to fraction form
    18,689.67/25,791.66 = 10,306.17/x
  3. Step 3: Cross multiply
    18,689.67x = 25,791.66 × 10,306.17
  4. Step 4: Simplify right side
    18,689.67x = 265,813,232.54
  5. Step 5: Solve for x
    x = 265,813,232.54/18,689.67
  6. Step 6: Final answer
    x = 14,222.47

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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.