Home / 8,776.20-12,106.60-6,383.48

Finding the Fourth Proportional to 8,776.20, 12,106.60 and 6,383.48

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Solution

The fourth proportional to 8,776.20, 12,106.60 and 6,383.48 is: 8,805.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776.20 : 12,106.60 = 6,383.48 : x
  2. Step 2: Convert to fraction form
    8,776.20/12,106.60 = 6,383.48/x
  3. Step 3: Cross multiply
    8,776.20x = 12,106.60 × 6,383.48
  4. Step 4: Simplify right side
    8,776.20x = 77,282,238.97
  5. Step 5: Solve for x
    x = 77,282,238.97/8,776.20
  6. Step 6: Final answer
    x = 8,805.89

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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.