Home / 8,122.81-11,209.39-4,764.98

Finding the Fourth Proportional to 8,122.81, 11,209.39 and 4,764.98

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Solution

The fourth proportional to 8,122.81, 11,209.39 and 4,764.98 is: 6,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.81 : 11,209.39 = 4,764.98 : x
  2. Step 2: Convert to fraction form
    8,122.81/11,209.39 = 4,764.98/x
  3. Step 3: Cross multiply
    8,122.81x = 11,209.39 × 4,764.98
  4. Step 4: Simplify right side
    8,122.81x = 53,412,472.22
  5. Step 5: Solve for x
    x = 53,412,472.22/8,122.81
  6. Step 6: Final answer
    x = 6,575.62

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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.