Home / 13,294.70-19,935.96-3,931.38

Finding the Fourth Proportional to 13,294.70, 19,935.96 and 3,931.38

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Solution

The fourth proportional to 13,294.70, 19,935.96 and 3,931.38 is: 5,895.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,294.70 : 19,935.96 = 3,931.38 : x
  2. Step 2: Convert to fraction form
    13,294.70/19,935.96 = 3,931.38/x
  3. Step 3: Cross multiply
    13,294.70x = 19,935.96 × 3,931.38
  4. Step 4: Simplify right side
    13,294.70x = 78,375,834.42
  5. Step 5: Solve for x
    x = 78,375,834.42/13,294.70
  6. Step 6: Final answer
    x = 5,895.27

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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.