Home / 8,485.97-12,722.78-5,705.73

Finding the Fourth Proportional to 8,485.97, 12,722.78 and 5,705.73

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Solution

The fourth proportional to 8,485.97, 12,722.78 and 5,705.73 is: 8,554.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.97 : 12,722.78 = 5,705.73 : x
  2. Step 2: Convert to fraction form
    8,485.97/12,722.78 = 5,705.73/x
  3. Step 3: Cross multiply
    8,485.97x = 12,722.78 × 5,705.73
  4. Step 4: Simplify right side
    8,485.97x = 72,592,761.79
  5. Step 5: Solve for x
    x = 72,592,761.79/8,485.97
  6. Step 6: Final answer
    x = 8,554.45

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Double scale
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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.