Home / 8,622.33-12,928.10-6,555.75

Finding the Fourth Proportional to 8,622.33, 12,928.10 and 6,555.75

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Solution

The fourth proportional to 8,622.33, 12,928.10 and 6,555.75 is: 9,829.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.33 : 12,928.10 = 6,555.75 : x
  2. Step 2: Convert to fraction form
    8,622.33/12,928.10 = 6,555.75/x
  3. Step 3: Cross multiply
    8,622.33x = 12,928.10 × 6,555.75
  4. Step 4: Simplify right side
    8,622.33x = 84,753,358.80
  5. Step 5: Solve for x
    x = 84,753,358.80/8,622.33
  6. Step 6: Final answer
    x = 9,829.52

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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.