Home / 14,947.92-20,631.78-8,663.94

Finding the Fourth Proportional to 14,947.92, 20,631.78 and 8,663.94

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Solution

The fourth proportional to 14,947.92, 20,631.78 and 8,663.94 is: 11,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,947.92 : 20,631.78 = 8,663.94 : x
  2. Step 2: Convert to fraction form
    14,947.92/20,631.78 = 8,663.94/x
  3. Step 3: Cross multiply
    14,947.92x = 20,631.78 × 8,663.94
  4. Step 4: Simplify right side
    14,947.92x = 178,752,504.01
  5. Step 5: Solve for x
    x = 178,752,504.01/14,947.92
  6. Step 6: Final answer
    x = 11,958.35

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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.