Home / 11,847.06-16,347.20-6,811.50

Finding the Fourth Proportional to 11,847.06, 16,347.20 and 6,811.50

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Solution

The fourth proportional to 11,847.06, 16,347.20 and 6,811.50 is: 9,398.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,847.06 : 16,347.20 = 6,811.50 : x
  2. Step 2: Convert to fraction form
    11,847.06/16,347.20 = 6,811.50/x
  3. Step 3: Cross multiply
    11,847.06x = 16,347.20 × 6,811.50
  4. Step 4: Simplify right side
    11,847.06x = 111,348,952.80
  5. Step 5: Solve for x
    x = 111,348,952.80/11,847.06
  6. Step 6: Final answer
    x = 9,398.87

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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.