Home / 13,947.77-19,240.79-8,906.69

Finding the Fourth Proportional to 13,947.77, 19,240.79 and 8,906.69

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Solution

The fourth proportional to 13,947.77, 19,240.79 and 8,906.69 is: 12,286.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.77 : 19,240.79 = 8,906.69 : x
  2. Step 2: Convert to fraction form
    13,947.77/19,240.79 = 8,906.69/x
  3. Step 3: Cross multiply
    13,947.77x = 19,240.79 × 8,906.69
  4. Step 4: Simplify right side
    13,947.77x = 171,371,755.45
  5. Step 5: Solve for x
    x = 171,371,755.45/13,947.77
  6. Step 6: Final answer
    x = 12,286.68

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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.