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Finding the Fourth Proportional to 13,305.92, 19,947.68 and 8,910.08

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Solution

The fourth proportional to 13,305.92, 19,947.68 and 8,910.08 is: 13,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.92 : 19,947.68 = 8,910.08 : x
  2. Step 2: Convert to fraction form
    13,305.92/19,947.68 = 8,910.08/x
  3. Step 3: Cross multiply
    13,305.92x = 19,947.68 × 8,910.08
  4. Step 4: Simplify right side
    13,305.92x = 177,735,424.61
  5. Step 5: Solve for x
    x = 177,735,424.61/13,305.92
  6. Step 6: Final answer
    x = 13,357.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.