Home / 8,701.92-12,004.20-5,554.80

Finding the Fourth Proportional to 8,701.92, 12,004.20 and 5,554.80

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Solution

The fourth proportional to 8,701.92, 12,004.20 and 5,554.80 is: 7,662.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.92 : 12,004.20 = 5,554.80 : x
  2. Step 2: Convert to fraction form
    8,701.92/12,004.20 = 5,554.80/x
  3. Step 3: Cross multiply
    8,701.92x = 12,004.20 × 5,554.80
  4. Step 4: Simplify right side
    8,701.92x = 66,680,930.16
  5. Step 5: Solve for x
    x = 66,680,930.16/8,701.92
  6. Step 6: Final answer
    x = 7,662.78

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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.