Home / 11,093.81-15,308.20-6,379.61

Finding the Fourth Proportional to 11,093.81, 15,308.20 and 6,379.61

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Solution

The fourth proportional to 11,093.81, 15,308.20 and 6,379.61 is: 8,803.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,093.81 : 15,308.20 = 6,379.61 : x
  2. Step 2: Convert to fraction form
    11,093.81/15,308.20 = 6,379.61/x
  3. Step 3: Cross multiply
    11,093.81x = 15,308.20 × 6,379.61
  4. Step 4: Simplify right side
    11,093.81x = 97,660,345.80
  5. Step 5: Solve for x
    x = 97,660,345.80/11,093.81
  6. Step 6: Final answer
    x = 8,803.14

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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.