Home / 13,345.38-18,334.17-11,947.32

Finding the Fourth Proportional to 13,345.38, 18,334.17 and 11,947.32

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Solution

The fourth proportional to 13,345.38, 18,334.17 and 11,947.32 is: 16,413.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.38 : 18,334.17 = 11,947.32 : x
  2. Step 2: Convert to fraction form
    13,345.38/18,334.17 = 11,947.32/x
  3. Step 3: Cross multiply
    13,345.38x = 18,334.17 × 11,947.32
  4. Step 4: Simplify right side
    13,345.38x = 219,044,195.92
  5. Step 5: Solve for x
    x = 219,044,195.92/13,345.38
  6. Step 6: Final answer
    x = 16,413.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.