Home / 8,768.24-12,100.40-4,789.76

Finding the Fourth Proportional to 8,768.24, 12,100.40 and 4,789.76

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Solution

The fourth proportional to 8,768.24, 12,100.40 and 4,789.76 is: 6,609.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.24 : 12,100.40 = 4,789.76 : x
  2. Step 2: Convert to fraction form
    8,768.24/12,100.40 = 4,789.76/x
  3. Step 3: Cross multiply
    8,768.24x = 12,100.40 × 4,789.76
  4. Step 4: Simplify right side
    8,768.24x = 57,958,011.90
  5. Step 5: Solve for x
    x = 57,958,011.90/8,768.24
  6. Step 6: Final answer
    x = 6,609.99

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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.