Home / 13,905.93-20,859.81-5,584.87

Finding the Fourth Proportional to 13,905.93, 20,859.81 and 5,584.87

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Solution

The fourth proportional to 13,905.93, 20,859.81 and 5,584.87 is: 8,377.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.93 : 20,859.81 = 5,584.87 : x
  2. Step 2: Convert to fraction form
    13,905.93/20,859.81 = 5,584.87/x
  3. Step 3: Cross multiply
    13,905.93x = 20,859.81 × 5,584.87
  4. Step 4: Simplify right side
    13,905.93x = 116,499,274.93
  5. Step 5: Solve for x
    x = 116,499,274.93/13,905.93
  6. Step 6: Final answer
    x = 8,377.67

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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.