Home / 8,124.30-11,216.76-6,635.79

Finding the Fourth Proportional to 8,124.30, 11,216.76 and 6,635.79

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Solution

The fourth proportional to 8,124.30, 11,216.76 and 6,635.79 is: 9,161.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.30 : 11,216.76 = 6,635.79 : x
  2. Step 2: Convert to fraction form
    8,124.30/11,216.76 = 6,635.79/x
  3. Step 3: Cross multiply
    8,124.30x = 11,216.76 × 6,635.79
  4. Step 4: Simplify right side
    8,124.30x = 74,432,063.84
  5. Step 5: Solve for x
    x = 74,432,063.84/8,124.30
  6. Step 6: Final answer
    x = 9,161.66

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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.