Home / 13,238.70-19,845.36-4,916.46

Finding the Fourth Proportional to 13,238.70, 19,845.36 and 4,916.46

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Solution

The fourth proportional to 13,238.70, 19,845.36 and 4,916.46 is: 7,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.70 : 19,845.36 = 4,916.46 : x
  2. Step 2: Convert to fraction form
    13,238.70/19,845.36 = 4,916.46/x
  3. Step 3: Cross multiply
    13,238.70x = 19,845.36 × 4,916.46
  4. Step 4: Simplify right side
    13,238.70x = 97,568,918.63
  5. Step 5: Solve for x
    x = 97,568,918.63/13,238.70
  6. Step 6: Final answer
    x = 7,369.98

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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.