Home / 13,249.60-19,877.13-3,889.91

Finding the Fourth Proportional to 13,249.60, 19,877.13 and 3,889.91

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Solution

The fourth proportional to 13,249.60, 19,877.13 and 3,889.91 is: 5,835.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.60 : 19,877.13 = 3,889.91 : x
  2. Step 2: Convert to fraction form
    13,249.60/19,877.13 = 3,889.91/x
  3. Step 3: Cross multiply
    13,249.60x = 19,877.13 × 3,889.91
  4. Step 4: Simplify right side
    13,249.60x = 77,320,296.45
  5. Step 5: Solve for x
    x = 77,320,296.45/13,249.60
  6. Step 6: Final answer
    x = 5,835.67

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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.