Home / 14,513.92-21,772.80-7,118.62

Finding the Fourth Proportional to 14,513.92, 21,772.80 and 7,118.62

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Solution

The fourth proportional to 14,513.92, 21,772.80 and 7,118.62 is: 10,678.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,513.92 : 21,772.80 = 7,118.62 : x
  2. Step 2: Convert to fraction form
    14,513.92/21,772.80 = 7,118.62/x
  3. Step 3: Cross multiply
    14,513.92x = 21,772.80 × 7,118.62
  4. Step 4: Simplify right side
    14,513.92x = 154,992,289.54
  5. Step 5: Solve for x
    x = 154,992,289.54/14,513.92
  6. Step 6: Final answer
    x = 10,678.87

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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.