Home / 11,259.60-16,890.36-2,939.61

Finding the Fourth Proportional to 11,259.60, 16,890.36 and 2,939.61

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Solution

The fourth proportional to 11,259.60, 16,890.36 and 2,939.61 is: 4,409.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,259.60 : 16,890.36 = 2,939.61 : x
  2. Step 2: Convert to fraction form
    11,259.60/16,890.36 = 2,939.61/x
  3. Step 3: Cross multiply
    11,259.60x = 16,890.36 × 2,939.61
  4. Step 4: Simplify right side
    11,259.60x = 49,651,071.16
  5. Step 5: Solve for x
    x = 49,651,071.16/11,259.60
  6. Step 6: Final answer
    x = 4,409.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.